diff --git a/docs/20260819_이벤트_접속국가별_언어필터/20260819_event_lang_ddl.sql b/docs/20260819_이벤트_접속국가별_언어필터/20260819_event_lang_ddl.sql
new file mode 100644
index 00000000..421c3690
--- /dev/null
+++ b/docs/20260819_이벤트_접속국가별_언어필터/20260819_event_lang_ddl.sql
@@ -0,0 +1,41 @@
+SET @schema_name := DATABASE();
+
+SET @lang_column_exists := (
+    SELECT COUNT(1)
+    FROM information_schema.columns
+    WHERE table_schema = @schema_name
+      AND table_name = 'event'
+      AND column_name = 'lang'
+);
+
+SET @add_lang_column_sql := IF(
+    @lang_column_exists = 0,
+    'ALTER TABLE `event` ADD COLUMN lang VARCHAR(10) NULL COMMENT ''이벤트 노출 언어'' AFTER title',
+    'SELECT ''event.lang already exists'' AS message'
+);
+
+PREPARE add_lang_column_stmt FROM @add_lang_column_sql;
+EXECUTE add_lang_column_stmt;
+DEALLOCATE PREPARE add_lang_column_stmt;
+
+UPDATE `event`
+SET lang = 'KO'
+WHERE lang IS NULL;
+
+SET @lang_column_nullable := (
+    SELECT IS_NULLABLE
+    FROM information_schema.columns
+    WHERE table_schema = @schema_name
+      AND table_name = 'event'
+      AND column_name = 'lang'
+);
+
+SET @alter_lang_column_sql := IF(
+    @lang_column_nullable = 'YES',
+    'ALTER TABLE `event` MODIFY COLUMN lang VARCHAR(10) NOT NULL DEFAULT ''KO'' COMMENT ''이벤트 노출 언어 (KO 기본, EN/JA 등록 가능)''',
+    'SELECT ''event.lang already normalized'' AS message'
+);
+
+PREPARE alter_lang_column_stmt FROM @alter_lang_column_sql;
+EXECUTE alter_lang_column_stmt;
+DEALLOCATE PREPARE alter_lang_column_stmt;
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/AdminEventBannerController.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/AdminEventBannerController.kt
index 5c45ef2c..5d6ace52 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/AdminEventBannerController.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/AdminEventBannerController.kt
@@ -26,9 +26,10 @@ class AdminEventBannerController(private val service: AdminEventBannerService) {
         @RequestParam(value = "isAdult", required = false) isAdult: Boolean? = null,
         @RequestParam(value = "isPopup") isPopup: Boolean,
         @RequestParam(value = "startDate") startDate: String,
-        @RequestParam(value = "endDate") endDate: String
+        @RequestParam(value = "endDate") endDate: String,
+        @RequestParam("lang") lang: String
     ) = ApiResponse.ok(
-        service.save(thumbnail, detail, popup, link, title, isAdult, isPopup, startDate, endDate),
+        service.save(thumbnail, detail, popup, link, title, isAdult, isPopup, startDate, endDate, lang),
         "등록되었습니다."
     )
 
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/AdminEventBannerRepository.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/AdminEventBannerRepository.kt
index bdc750d6..87825008 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/AdminEventBannerRepository.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/AdminEventBannerRepository.kt
@@ -33,6 +33,7 @@ class AdminEventBannerQueryRepositoryImpl(
                 QGetAdminEventResponse(
                     event.id,
                     event.title,
+                    event.lang,
                     getProcessedUrlExpression(event.thumbnailImage),
                     getProcessedUrlExpression(event.detailImage),
                     getProcessedUrlExpression(event.popupImage),
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/AdminEventBannerService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/AdminEventBannerService.kt
index 7aa7bacb..250fc4bd 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/AdminEventBannerService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/AdminEventBannerService.kt
@@ -4,6 +4,7 @@ import com.amazonaws.services.s3.model.ObjectMetadata
 import kr.co.vividnext.sodalive.aws.s3.S3Uploader
 import kr.co.vividnext.sodalive.common.SodaException
 import kr.co.vividnext.sodalive.event.Event
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.utils.generateFileName
 import org.springframework.beans.factory.annotation.Value
 import org.springframework.data.repository.findByIdOrNull
@@ -32,12 +33,19 @@ class AdminEventBannerService(
         isAdult: Boolean? = null,
         isPopup: Boolean,
         startDateString: String,
-        endDateString: String
+        endDateString: String,
+        lang: String
     ): Long {
         if (detail == null && link.isNullOrBlank()) {
             throw SodaException(messageKey = "admin.event.banner.detail_or_link_required")
         }
 
+        val eventLang = try {
+            Lang.fromCode(lang)
+        } catch (_: IllegalArgumentException) {
+            throw SodaException(messageKey = "common.error.invalid_request")
+        }
+
         val dateTimeFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm")
         val startDate = LocalDateTime.parse(startDateString, dateTimeFormatter)
             .atZone(ZoneId.of("Asia/Seoul"))
@@ -56,6 +64,7 @@ class AdminEventBannerService(
                 popupImage = null,
                 link = link,
                 title = title,
+                lang = eventLang,
                 isAdult = isAdult,
                 isPopup = isPopup,
                 startDate = startDate,
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/GetAdminEventResponse.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/GetAdminEventResponse.kt
index 23b10b6e..efdc7851 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/GetAdminEventResponse.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/event/banner/GetAdminEventResponse.kt
@@ -1,10 +1,12 @@
 package kr.co.vividnext.sodalive.admin.event.banner
 
 import com.querydsl.core.annotations.QueryProjection
+import kr.co.vividnext.sodalive.i18n.Lang
 
 data class GetAdminEventResponse @QueryProjection constructor(
     val id: Long,
     val title: String? = null,
+    val lang: Lang,
     val thumbnailImageUrl: String,
     val detailImageUrl: String? = null,
     val popupImageUrl: String? = null,
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/event/Event.kt b/src/main/kotlin/kr/co/vividnext/sodalive/event/Event.kt
index 83f8e602..850f0319 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/event/Event.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/event/Event.kt
@@ -1,9 +1,12 @@
 package kr.co.vividnext.sodalive.event
 
 import kr.co.vividnext.sodalive.common.BaseEntity
+import kr.co.vividnext.sodalive.i18n.Lang
 import java.time.LocalDateTime
 import javax.persistence.Column
 import javax.persistence.Entity
+import javax.persistence.EnumType
+import javax.persistence.Enumerated
 
 @Entity
 data class Event(
@@ -17,6 +20,9 @@ data class Event(
     var link: String?,
     @Column(nullable = true)
     var title: String?,
+    @Column(nullable = false)
+    @Enumerated(value = EnumType.STRING)
+    var lang: Lang = Lang.KO,
     @Column(nullable = true)
     var isAdult: Boolean? = null,
     @Column(nullable = false)
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/event/EventController.kt b/src/main/kotlin/kr/co/vividnext/sodalive/event/EventController.kt
index 6b30874a..3b950b49 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/event/EventController.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/event/EventController.kt
@@ -22,17 +22,14 @@ class EventController(private val service: EventService) {
         @AuthenticationPrincipal(expression = "#this == 'anonymousUser' ? null : member") member: Member?
     ) = run {
         ApiResponse.ok(
-            service.getEventList(
-                memberId = member?.id,
-                memberRole = member?.role
-            )
+            service.getEventList(member = member)
         )
     }
 
     @GetMapping("/popup")
     fun getEventPopup(
         @AuthenticationPrincipal(expression = "#this == 'anonymousUser' ? null : member") member: Member?
-    ) = ApiResponse.ok(service.getEventPopup(memberId = member?.id))
+    ) = ApiResponse.ok(service.getEventPopup(member = member))
 
     @PostMapping
     @PreAuthorize("hasRole('ADMIN')")
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/event/EventRepository.kt b/src/main/kotlin/kr/co/vividnext/sodalive/event/EventRepository.kt
index 2a0df4b1..b232add0 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/event/EventRepository.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/event/EventRepository.kt
@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.event
 
 import com.querydsl.jpa.impl.JPAQueryFactory
 import kr.co.vividnext.sodalive.event.QEvent.event
+import kr.co.vividnext.sodalive.i18n.Lang
 import org.springframework.data.jpa.repository.JpaRepository
 import org.springframework.stereotype.Repository
 import java.time.LocalDateTime
@@ -10,13 +11,13 @@ import java.time.LocalDateTime
 interface EventRepository : JpaRepository<Event, Long>, EventQueryRepository
 
 interface EventQueryRepository {
-    fun getEventList(isAdult: Boolean? = null): List<EventItem>
-    fun getMainEventPopup(isAdult: Boolean): EventItem?
+    fun getEventList(isAdult: Boolean? = null, lang: Lang? = null): List<EventItem>
+    fun getMainEventPopup(isAdult: Boolean, lang: Lang? = null): EventItem?
 }
 
 @Repository
 class EventQueryRepositoryImpl(private val queryFactory: JPAQueryFactory) : EventQueryRepository {
-    override fun getEventList(isAdult: Boolean?): List<EventItem> {
+    override fun getEventList(isAdult: Boolean?, lang: Lang?): List<EventItem> {
         val now = LocalDateTime.now()
         var where = event.isActive.isTrue
             .and(event.startDate.loe(now))
@@ -36,6 +37,10 @@ class EventQueryRepositoryImpl(private val queryFactory: JPAQueryFactory) : Even
             }
         }
 
+        if (lang != null) {
+            where = where.and(event.lang.eq(lang))
+        }
+
         return queryFactory
             .select(
                 QEventItem(
@@ -52,7 +57,7 @@ class EventQueryRepositoryImpl(private val queryFactory: JPAQueryFactory) : Even
             .fetch()
     }
 
-    override fun getMainEventPopup(isAdult: Boolean): EventItem? {
+    override fun getMainEventPopup(isAdult: Boolean, lang: Lang?): EventItem? {
         val now = LocalDateTime.now()
         var where = event.isActive.isTrue
             .and(event.isPopup.isTrue)
@@ -71,6 +76,9 @@ class EventQueryRepositoryImpl(private val queryFactory: JPAQueryFactory) : Even
                     .or(event.isAdult.isFalse)
             )
         }
+        if (lang != null) {
+            where = where.and(event.lang.eq(lang))
+        }
 
         return queryFactory
             .select(
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/event/EventService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/event/EventService.kt
index 94b25278..ff4ea05f 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/event/EventService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/event/EventService.kt
@@ -3,8 +3,11 @@ package kr.co.vividnext.sodalive.event
 import com.amazonaws.services.s3.model.ObjectMetadata
 import kr.co.vividnext.sodalive.aws.s3.S3Uploader
 import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.member.auth.AuthRepository
+import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
 import kr.co.vividnext.sodalive.utils.generateFileName
 import org.springframework.beans.factory.annotation.Value
 import org.springframework.data.repository.findByIdOrNull
@@ -20,6 +23,7 @@ class EventService(
     private val repository: EventRepository,
     private val s3Uploader: S3Uploader,
     private val authRepository: AuthRepository,
+    private val memberContentPreferenceService: MemberContentPreferenceService,
 
     @Value("\${cloud.aws.s3.bucket}")
     private val bucket: String,
@@ -27,8 +31,8 @@ class EventService(
     private val cloudFrontHost: String
 ) {
     @Transactional(readOnly = true)
-    fun getEventList(isAdult: Boolean? = null): GetEventResponse {
-        val eventList = repository.getEventList(isAdult)
+    fun getEventList(isAdult: Boolean? = null, lang: Lang? = null): GetEventResponse {
+        val eventList = repository.getEventList(isAdult, lang)
             .map {
                 if (!it.thumbnailImageUrl.startsWith("https://")) {
                     it.thumbnailImageUrl = "$cloudFrontHost/${it.thumbnailImageUrl}"
@@ -49,18 +53,18 @@ class EventService(
     }
 
     @Transactional(readOnly = true)
-    fun getEventList(memberId: Long?, memberRole: MemberRole?): GetEventResponse {
-        val isAdult = if (memberRole == MemberRole.ADMIN) {
+    fun getEventList(member: Member?): GetEventResponse {
+        val isAdult = if (member?.role == MemberRole.ADMIN) {
             null
         } else {
-            memberId?.let { authRepository.getAuthIdByMemberId(it) != null } ?: false
+            member?.id?.let { authRepository.getAuthIdByMemberId(it) != null } ?: false
         }
-        return getEventList(isAdult)
+        return getEventList(isAdult = isAdult, lang = resolveEventLang(member))
     }
 
     @Transactional(readOnly = true)
-    fun getEventPopup(isAdult: Boolean): EventItem? {
-        val eventPopup = repository.getMainEventPopup(isAdult)
+    fun getEventPopup(isAdult: Boolean, lang: Lang? = null): EventItem? {
+        val eventPopup = repository.getMainEventPopup(isAdult, lang)
 
         if (eventPopup != null) {
             if (!eventPopup.thumbnailImageUrl.startsWith("https://")) {
@@ -80,11 +84,14 @@ class EventService(
     }
 
     @Transactional(readOnly = true)
-    fun getEventPopup(memberId: Long?): EventItem? {
-        val isAdult = memberId?.let { authRepository.getAuthIdByMemberId(it) != null } ?: false
-        return getEventPopup(isAdult)
+    fun getEventPopup(member: Member?): EventItem? {
+        val isAdult = member?.id?.let { authRepository.getAuthIdByMemberId(it) != null } ?: false
+        return getEventPopup(isAdult = isAdult, lang = resolveEventLang(member))
     }
 
+    private fun resolveEventLang(member: Member?): Lang =
+        if (memberContentPreferenceService.resolveCountryCode(member) == "JP") Lang.JA else Lang.KO
+
     @Transactional
     fun save(
         thumbnail: MultipartFile,
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/admin/event/banner/AdminEventBannerControllerIntegrationTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/admin/event/banner/AdminEventBannerControllerIntegrationTest.kt
new file mode 100644
index 00000000..154b545e
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/admin/event/banner/AdminEventBannerControllerIntegrationTest.kt
@@ -0,0 +1,158 @@
+package kr.co.vividnext.sodalive.admin.event.banner
+
+import com.amazonaws.services.s3.model.ObjectMetadata
+import kr.co.vividnext.sodalive.aws.s3.S3Uploader
+import kr.co.vividnext.sodalive.event.Event
+import kr.co.vividnext.sodalive.event.EventRepository
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.support.EmbeddedRedisInitializer
+import org.hamcrest.Matchers.containsInAnyOrder
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc
+import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.boot.test.mock.mockito.MockBean
+import org.springframework.jdbc.core.JdbcTemplate
+import org.springframework.mock.web.MockMultipartFile
+import org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.user
+import org.springframework.test.annotation.DirtiesContext
+import org.springframework.test.context.ContextConfiguration
+import org.springframework.test.web.servlet.MockMvc
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders.multipart
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers.status
+import java.io.InputStream
+import java.time.LocalDateTime
+
+@SpringBootTest(
+    properties = [
+        "cloud.aws.cloud-front.host=https://cdn.test",
+        "cloud.aws.s3.bucket=test-bucket",
+        "spring.datasource.url=jdbc:h2:mem:admin-event-banner-controller-integration;" +
+            "MODE=MySQL;DATABASE_TO_UPPER=false;NON_KEYWORDS=VALUE;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE"
+    ]
+)
+@AutoConfigureMockMvc
+@ContextConfiguration(initializers = [EmbeddedRedisInitializer::class])
+@DirtiesContext(classMode = DirtiesContext.ClassMode.AFTER_CLASS)
+class AdminEventBannerControllerIntegrationTest @Autowired constructor(
+    private val mockMvc: MockMvc,
+    private val eventRepository: EventRepository,
+    private val jdbcTemplate: JdbcTemplate
+) {
+    @MockBean
+    private lateinit var s3Uploader: S3Uploader
+
+    @BeforeEach
+    fun setUp() {
+        registerMysqlDateFunctions()
+        eventRepository.deleteAll()
+        Mockito.`when`(
+            s3Uploader.upload(
+                anyInputStream(),
+                anyStringValue(),
+                anyStringValue(),
+                anyObjectMetadata()
+            )
+        ).thenAnswer { it.getArgument(2) }
+    }
+
+    @Test
+    @DisplayName("관리자 이벤트 등록은 소문자 언어 코드를 저장한다")
+    fun shouldPersistLowercaseLanguageWhenAdminCreatesEventBanner() {
+        mockMvc.perform(createRequest().param("lang", "en"))
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.success").value(true))
+
+        assertEquals(Lang.EN, eventRepository.findAll().single().lang)
+    }
+
+    @Test
+    @DisplayName("관리자 이벤트 등록은 잘못된 언어를 저장하거나 업로드하지 않는다")
+    fun shouldRejectInvalidLanguageWithoutPersistenceOrUpload() {
+        mockMvc.perform(createRequest().param("lang", "fr"))
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.success").value(false))
+
+        assertEquals(0, eventRepository.count())
+        Mockito.verifyNoInteractions(s3Uploader)
+    }
+
+    @Test
+    @DisplayName("관리자 이벤트 등록은 언어 누락을 저장하거나 업로드하지 않는다")
+    fun shouldRejectMissingLanguageWithoutPersistenceOrUpload() {
+        mockMvc.perform(createRequest())
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.success").value(false))
+
+        assertEquals(0, eventRepository.count())
+        Mockito.verifyNoInteractions(s3Uploader)
+    }
+
+    @Test
+    @DisplayName("관리자 이벤트 목록은 활성 미만료 이벤트의 모든 언어를 반환한다")
+    fun shouldReturnAllActiveNonExpiredLanguagesForAdmin() {
+        eventRepository.saveAllAndFlush(
+            listOf(
+                activeEvent("ko", Lang.KO),
+                activeEvent("en", Lang.EN),
+                activeEvent("ja", Lang.JA),
+                activeEvent("inactive", Lang.KO).apply { isActive = false },
+                activeEvent("expired", Lang.JA).apply { endDate = LocalDateTime.now().minusMinutes(1) }
+            )
+        )
+
+        mockMvc.perform(
+            get("/admin/event/banner")
+                .with(user("admin").roles("ADMIN"))
+        )
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.success").value(true))
+            .andExpect(jsonPath("$.data.length()").value(3))
+            .andExpect(jsonPath("$.data[*].lang").value(containsInAnyOrder("KO", "EN", "JA")))
+    }
+
+    private fun createRequest() =
+        multipart("/admin/event/banner")
+            .file(MockMultipartFile("thumbnail", "thumbnail.png", "image/png", "thumbnail".toByteArray()))
+            .param("link", "https://event.test/banner")
+            .param("isPopup", "false")
+            .param("startDate", "2099-01-01 00:00")
+            .param("endDate", "2099-01-02 00:00")
+            .with(user("admin").roles("ADMIN"))
+
+    private fun activeEvent(seed: String, lang: Lang): Event {
+        return Event(
+            thumbnailImage = "$seed-thumbnail.png",
+            detailImage = "$seed-detail.png",
+            popupImage = null,
+            link = null,
+            title = seed,
+            lang = lang,
+            isAdult = false,
+            isPopup = false,
+            startDate = LocalDateTime.now().minusDays(1),
+            endDate = LocalDateTime.now().plusDays(1)
+        )
+    }
+
+    private fun anyInputStream(): InputStream = Mockito.any(InputStream::class.java) ?: byteArrayOf().inputStream()
+
+    private fun anyObjectMetadata(): ObjectMetadata = Mockito.any(ObjectMetadata::class.java) ?: ObjectMetadata()
+
+    private fun anyStringValue(): String = Mockito.anyString() ?: ""
+
+    private fun registerMysqlDateFunctions() {
+        jdbcTemplate.execute(
+            "CREATE ALIAS IF NOT EXISTS DATE_FORMAT FOR 'kr.co.vividnext.sodalive.support.H2MysqlDateFunctions.dateFormat'"
+        )
+        jdbcTemplate.execute(
+            "CREATE ALIAS IF NOT EXISTS CONVERT_TZ FOR 'kr.co.vividnext.sodalive.support.H2MysqlDateFunctions.convertTz'"
+        )
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/event/EventControllerIntegrationTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/event/EventControllerIntegrationTest.kt
new file mode 100644
index 00000000..98f20c63
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/event/EventControllerIntegrationTest.kt
@@ -0,0 +1,133 @@
+package kr.co.vividnext.sodalive.event
+
+import kr.co.vividnext.sodalive.aws.s3.S3Uploader
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.member.MemberAdapter
+import kr.co.vividnext.sodalive.support.EmbeddedRedisInitializer
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc
+import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.boot.test.mock.mockito.MockBean
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken
+import org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.authentication
+import org.springframework.test.annotation.DirtiesContext
+import org.springframework.test.context.ContextConfiguration
+import org.springframework.test.web.servlet.MockMvc
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath
+import org.springframework.test.web.servlet.result.MockMvcResultMatchers.status
+import java.time.LocalDateTime
+
+@SpringBootTest(
+    properties = [
+        "cloud.aws.cloud-front.host=https://cdn.test",
+        "cloud.aws.s3.bucket=test-bucket",
+        "spring.datasource.url=jdbc:h2:mem:event-controller-integration;" +
+            "MODE=MySQL;DATABASE_TO_UPPER=false;NON_KEYWORDS=VALUE;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE"
+    ]
+)
+@AutoConfigureMockMvc
+@ContextConfiguration(initializers = [EmbeddedRedisInitializer::class])
+@DirtiesContext(classMode = DirtiesContext.ClassMode.AFTER_CLASS)
+class EventControllerIntegrationTest @Autowired constructor(
+    private val mockMvc: MockMvc,
+    private val eventRepository: EventRepository
+) {
+    @MockBean
+    private lateinit var s3Uploader: S3Uploader
+
+    @BeforeEach
+    fun setUp() {
+        eventRepository.deleteAll()
+    }
+
+    @Test
+    @DisplayName("비로그인 JP 요청의 이벤트 목록은 JA만 반환한다")
+    fun shouldReturnOnlyJapaneseEventListForAnonymousJapanRequest() {
+        val japaneseEvent = saveControllerEvent("ja", Lang.JA)
+        saveControllerEvent("ko", Lang.KO)
+
+        mockMvc.perform(
+            get("/event")
+                .header("CloudFront-Viewer-Country", "JP")
+        )
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.data.eventList.length()").value(1))
+            .andExpect(jsonPath("$.data.eventList[0].id").value(japaneseEvent.id))
+    }
+
+    @Test
+    @DisplayName("인증 JP 요청의 이벤트 팝업은 JA만 반환한다")
+    fun shouldReturnOnlyJapanesePopupForAuthenticatedJapanRequest() {
+        val japaneseEvent = saveControllerEvent("ja", Lang.JA)
+        saveControllerEvent("newer-ko", Lang.KO)
+
+        mockMvc.perform(
+            get("/event/popup")
+                .header("CloudFront-Viewer-Country", "JP")
+                .with(authentication(memberAuthentication()))
+        )
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.data.id").value(japaneseEvent.id))
+    }
+
+    @Test
+    @DisplayName("국가 헤더 없는 비로그인 이벤트 목록은 KO만 반환한다")
+    fun shouldReturnOnlyKoreanEventListWhenCountryHeaderIsMissing() {
+        saveControllerEvent("ja", Lang.JA)
+        val koreanEvent = saveControllerEvent("ko", Lang.KO)
+
+        mockMvc.perform(get("/event"))
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.data.eventList.length()").value(1))
+            .andExpect(jsonPath("$.data.eventList[0].id").value(koreanEvent.id))
+    }
+
+    @Test
+    @DisplayName("국가 헤더 없는 인증 요청의 이벤트 팝업은 KO만 반환한다")
+    fun shouldReturnOnlyKoreanPopupForAuthenticatedRequestWhenCountryHeaderIsMissing() {
+        saveControllerEvent("ja", Lang.JA)
+        val koreanEvent = saveControllerEvent("ko", Lang.KO)
+
+        mockMvc.perform(
+            get("/event/popup")
+                .with(authentication(memberAuthentication()))
+        )
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.data.id").value(koreanEvent.id))
+    }
+
+    @Test
+    @DisplayName("비로그인 이벤트 팝업 요청은 인증이 필요하다")
+    fun shouldRequireAuthenticationForAnonymousEventPopupRequest() {
+        mockMvc.perform(get("/event/popup"))
+            .andExpect(status().isUnauthorized)
+    }
+
+    private fun saveControllerEvent(seed: String, lang: Lang): Event {
+        return eventRepository.saveAndFlush(
+            Event(
+                thumbnailImage = "$seed-thumbnail.png",
+                detailImage = "$seed-detail.png",
+                popupImage = "$seed-popup.png",
+                link = null,
+                title = seed,
+                lang = lang,
+                isAdult = false,
+                isPopup = true,
+                startDate = LocalDateTime.now().minusDays(1),
+                endDate = LocalDateTime.now().plusDays(1)
+            )
+        )
+    }
+
+    private fun memberAuthentication(): UsernamePasswordAuthenticationToken {
+        val member = Member(password = "password", nickname = "event-member").apply { id = 1000L }
+        val memberAdapter = MemberAdapter(member)
+        return UsernamePasswordAuthenticationToken(memberAdapter, "token", memberAdapter.authorities)
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/event/EventRepositoryTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/event/EventRepositoryTest.kt
new file mode 100644
index 00000000..2bba179a
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/event/EventRepositoryTest.kt
@@ -0,0 +1,147 @@
+package kr.co.vividnext.sodalive.event
+
+import kr.co.vividnext.sodalive.admin.event.banner.AdminEventBannerRepository
+import kr.co.vividnext.sodalive.configs.QueryDslConfig
+import kr.co.vividnext.sodalive.i18n.Lang
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest
+import org.springframework.context.annotation.Import
+import java.time.LocalDateTime
+import javax.persistence.EntityManager
+
+@DataJpaTest(properties = ["spring.cache.type=none"])
+@Import(QueryDslConfig::class)
+class EventRepositoryTest @Autowired constructor(
+    private val repository: EventRepository,
+    private val adminRepository: AdminEventBannerRepository,
+    private val entityManager: EntityManager
+) {
+    @BeforeEach
+    fun setUp() {
+        registerMysqlDateFunctions()
+    }
+
+    @Test
+    @DisplayName("이벤트 언어는 명시적 값을 저장하고 누락 시 KO를 사용한다")
+    fun shouldPersistEventLanguageAndDefaultToKorean() {
+        val japanese = repository.saveAndFlush(activeEvent("ja").apply { lang = Lang.JA })
+        val korean = repository.saveAndFlush(activeEvent("ko"))
+
+        entityManager.clear()
+
+        assertEquals(Lang.JA, repository.findById(japanese.id!!).orElseThrow().lang)
+        assertEquals(Lang.KO, repository.findById(korean.id!!).orElseThrow().lang)
+    }
+
+    @Test
+    @DisplayName("관리자 이벤트 목록은 활성 미만료 이벤트의 모든 언어를 조회한다")
+    fun shouldReturnAllActiveNonExpiredLanguagesForAdmin() {
+        repository.saveAllAndFlush(
+            listOf(
+                activeEvent("ko"),
+                activeEvent("en").apply { lang = Lang.EN },
+                activeEvent("ja").apply { lang = Lang.JA },
+                activeEvent("inactive").apply { isActive = false },
+                activeEvent("expired").apply { endDate = LocalDateTime.now().minusMinutes(1) }
+            )
+        )
+        entityManager.clear()
+
+        val languages = adminRepository.getEventList().map { it.lang }
+
+        assertEquals(setOf(Lang.KO, Lang.EN, Lang.JA), languages.toSet())
+        assertEquals(3, languages.size)
+    }
+
+    @Test
+    @DisplayName("앱 이벤트 목록은 요청 언어와 기존 활성 기간 성인 조건을 모두 적용한다")
+    fun shouldFilterEventListByKoreanAndJapaneseLanguage() {
+        val korean = repository.saveAndFlush(activeEvent("ko"))
+        val japanese = repository.saveAndFlush(activeEvent("ja").apply { lang = Lang.JA })
+        repository.saveAndFlush(
+            activeEvent("inactive-ja").apply {
+                lang = Lang.JA
+                isActive = false
+            }
+        )
+        repository.saveAndFlush(
+            activeEvent("future-ja").apply {
+                lang = Lang.JA
+                startDate = LocalDateTime.now().plusDays(1)
+            }
+        )
+        repository.saveAndFlush(activeEvent("expired-ko").apply { endDate = LocalDateTime.now().minusDays(1) })
+        repository.saveAndFlush(activeEvent("adult-ko").apply { isAdult = true })
+
+        val koreanIds = repository.getEventList(isAdult = false, lang = Lang.KO).map { it.id }
+        val japaneseIds = repository.getEventList(isAdult = false, lang = Lang.JA).map { it.id }
+
+        assertEquals(listOf(korean.id), koreanIds)
+        assertEquals(listOf(japanese.id), japaneseIds)
+    }
+
+    @Test
+    @DisplayName("언어가 없으면 활성 이벤트의 KO EN JA를 모두 조회한다")
+    fun shouldReturnAllActiveLanguagesWhenLanguageIsNull() {
+        val events = repository.saveAllAndFlush(
+            listOf(
+                activeEvent("ko"),
+                activeEvent("en").apply { lang = Lang.EN },
+                activeEvent("ja").apply { lang = Lang.JA }
+            )
+        )
+        entityManager.clear()
+
+        val eventIds = repository.getEventList(isAdult = false, lang = null).map { it.id }
+
+        assertEquals(events.map { it.id }.toSet(), eventIds.toSet())
+        assertEquals(3, eventIds.size)
+    }
+
+    @Test
+    @DisplayName("팝업은 언어 필터 후 최신 이벤트를 선택한다")
+    fun shouldFilterPopupByLanguageBeforeSelectingNewestEvent() {
+        val japanesePopup = repository.saveAndFlush(activeEvent("ja-popup", isPopup = true).apply { lang = Lang.JA })
+        repository.saveAndFlush(activeEvent("newer-ko-popup", isPopup = true))
+        repository.saveAndFlush(
+            activeEvent("newer-adult-ja-popup", isPopup = true).apply {
+                lang = Lang.JA
+                isAdult = true
+            }
+        )
+
+        val result = repository.getMainEventPopup(isAdult = false, lang = Lang.JA)
+
+        assertEquals(japanesePopup.id, result?.id)
+    }
+
+    private fun activeEvent(
+        seed: String,
+        isPopup: Boolean = false
+    ): Event {
+        return Event(
+            thumbnailImage = "$seed-thumbnail.png",
+            detailImage = "$seed-detail.png",
+            popupImage = if (isPopup) "$seed-popup.png" else null,
+            link = null,
+            title = seed,
+            isAdult = false,
+            isPopup = isPopup,
+            startDate = LocalDateTime.now().minusDays(1),
+            endDate = LocalDateTime.now().plusDays(1)
+        )
+    }
+
+    private fun registerMysqlDateFunctions() {
+        entityManager.createNativeQuery(
+            "CREATE ALIAS IF NOT EXISTS DATE_FORMAT FOR 'kr.co.vividnext.sodalive.support.H2MysqlDateFunctions.dateFormat'"
+        ).executeUpdate()
+        entityManager.createNativeQuery(
+            "CREATE ALIAS IF NOT EXISTS CONVERT_TZ FOR 'kr.co.vividnext.sodalive.support.H2MysqlDateFunctions.convertTz'"
+        ).executeUpdate()
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/event/EventServiceTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/event/EventServiceTest.kt
index 6e9d4feb..6f736a4a 100644
--- a/src/test/kotlin/kr/co/vividnext/sodalive/event/EventServiceTest.kt
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/event/EventServiceTest.kt
@@ -1,39 +1,75 @@
 package kr.co.vividnext.sodalive.event
 
 import kr.co.vividnext.sodalive.aws.s3.S3Uploader
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.member.auth.AuthRepository
+import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
+import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.mockito.Mockito
 
 class EventServiceTest {
     private val repository = Mockito.mock(EventRepository::class.java)
     private val authRepository = Mockito.mock(AuthRepository::class.java)
+    private val preferenceService = Mockito.mock(MemberContentPreferenceService::class.java)
     private val service = EventService(
         repository = repository,
         s3Uploader = Mockito.mock(S3Uploader::class.java),
         authRepository = authRepository,
+        memberContentPreferenceService = preferenceService,
         bucket = "test-bucket",
         cloudFrontHost = "https://cdn.test"
     )
 
     @Test
-    fun shouldResolveAdultFlagFromAuthRepositoryForMemberEventList() {
+    @DisplayName("JP 판정 회원의 이벤트 목록은 JA를 조회한다")
+    fun shouldQueryJapaneseEventListForJapan() {
+        val member = member(id = 10L)
         Mockito.`when`(authRepository.getAuthIdByMemberId(10L)).thenReturn(100L)
-        Mockito.`when`(repository.getEventList(true)).thenReturn(emptyList())
+        Mockito.`when`(preferenceService.resolveCountryCode(member)).thenReturn("JP")
+        Mockito.`when`(repository.getEventList(true, Lang.JA)).thenReturn(emptyList())
 
-        service.getEventList(memberId = 10L, memberRole = MemberRole.USER)
+        service.getEventList(member)
 
-        Mockito.verify(repository).getEventList(true)
+        Mockito.verify(repository).getEventList(true, Lang.JA)
     }
 
     @Test
-    fun shouldKeepAdminEventListUnfiltered() {
-        Mockito.`when`(repository.getEventList(null)).thenReturn(emptyList())
+    @DisplayName("비로그인 KR 판정의 이벤트 팝업은 KO를 조회한다")
+    fun shouldQueryKoreanEventPopupForAnonymousKorea() {
+        Mockito.`when`(preferenceService.resolveCountryCode(null)).thenReturn("KR")
 
-        service.getEventList(memberId = 1L, memberRole = MemberRole.ADMIN)
+        service.getEventPopup(null as Member?)
 
-        Mockito.verify(repository).getEventList(null)
+        Mockito.verify(repository).getMainEventPopup(false, Lang.KO)
+    }
+
+    @Test
+    @DisplayName("관리자 이벤트 목록은 성인 조건 없이 판정 언어를 조회한다")
+    fun shouldKeepAdminAdultFilterNullWhileApplyingResolvedLanguage() {
+        val admin = member(id = 1L, role = MemberRole.ADMIN)
+        Mockito.`when`(preferenceService.resolveCountryCode(admin)).thenReturn("KR")
+        Mockito.`when`(repository.getEventList(null, Lang.KO)).thenReturn(emptyList())
+
+        service.getEventList(admin)
+
+        Mockito.verify(repository).getEventList(null, Lang.KO)
         Mockito.verifyNoInteractions(authRepository)
     }
+
+    @Test
+    @DisplayName("성인 제외 이벤트 목록은 언어 없이 조회한다")
+    fun shouldQueryNonAdultEventListWithoutLanguage() {
+        Mockito.`when`(repository.getEventList(false, null)).thenReturn(emptyList())
+
+        service.getEventList(isAdult = false)
+
+        Mockito.verify(repository).getEventList(false, null)
+    }
+
+    private fun member(id: Long, role: MemberRole = MemberRole.USER): Member {
+        return Member(password = "password", nickname = "member$id", role = role).apply { this.id = id }
+    }
 }