diff --git a/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/api/MonthlyReportController.java b/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/api/MonthlyReportController.java
index 0c2ca90..481d209 100644
--- a/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/api/MonthlyReportController.java
+++ b/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/api/MonthlyReportController.java
@@ -2,6 +2,7 @@
 
 import com.devkor.ifive.nadab.domain.monthlyreport.api.dto.response.MonthlyReportResponse;
 import com.devkor.ifive.nadab.domain.monthlyreport.api.dto.response.MonthlyReportStartResponse;
+import com.devkor.ifive.nadab.domain.monthlyreport.api.dto.response.MyMonthlyReportResponse;
 import com.devkor.ifive.nadab.domain.monthlyreport.application.MonthlyReportQueryService;
 import com.devkor.ifive.nadab.domain.monthlyreport.application.MonthlyReportService;
 import com.devkor.ifive.nadab.domain.weeklyreport.api.dto.response.CompletedCountResponse;
@@ -86,13 +87,18 @@ public ResponseEntity<ApiResponseDto<MonthlyReportStartResponse>> startMonthlyRe
     @PreAuthorize("isAuthenticated()")
     @Operation(
             summary = "나의 월간 리포트 조회",
-            description = "사용자의 (지난 달) 월간 리포트를 조회합니다.",
+            description = """
+                    사용자의 (지난 달에 대한) 월간 리포트와 이전 월간 리포트를 조회합니다. </br>
+                    이때 ```report```혹은 ```previousReport```가 ```null```인 경우 해당 주간 리포트가 존재하지 않음을 의미합니다. </br>
+                    ```report```혹은 ```previousReport```가
+                    ```null```이 아닌 경우 ```status```필드는 항상 ```COMPLETED```입니다.
+                    """,
             security = @SecurityRequirement(name = "bearerAuth"),
             responses = {
                     @ApiResponse(
                             responseCode = "200",
                             description = "나의 월간 리포트 조회 성공",
-                            content = @Content(schema = @Schema(implementation = MonthlyReportResponse.class), mediaType = "application/json")
+                            content = @Content(schema = @Schema(implementation = MyMonthlyReportResponse.class), mediaType = "application/json")
                     ),
                     @ApiResponse(
                             responseCode = "401",
@@ -103,17 +109,15 @@ public ResponseEntity<ApiResponseDto<MonthlyReportStartResponse>> startMonthlyRe
                             responseCode = "404",
                             description = """
                                     - ErrorCode: USER_NOT_FOUND - 사용자를 찾을 수 없음
-                                    - ErrorCode: MONTHLY_REPORT_NOT_FOUND - 월간 리포트를 찾을 수 없음
-                                    - ErrorCode: MONTHLY_REPORT_NOT_COMPLETED - 해당 월간 리포트가 아직 생성 완료되지 않음
                                     """,
                             content = @Content
                     )
             }
     )
-    public ResponseEntity<ApiResponseDto<MonthlyReportResponse>> getLastMonthMonthlyReport(
+    public ResponseEntity<ApiResponseDto<MyMonthlyReportResponse>> getMyMonthlyReport(
             @AuthenticationPrincipal UserPrincipal principal
     ) {
-        MonthlyReportResponse response = monthlyReportQueryService.getLastMonthMonthlyReport(principal.getId());
+        MyMonthlyReportResponse response = monthlyReportQueryService.getMyMonthlyReport(principal.getId());
         return ApiResponseEntity.ok(response);
     }
 
diff --git a/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/api/dto/response/MyMonthlyReportResponse.java b/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/api/dto/response/MyMonthlyReportResponse.java
new file mode 100644
index 0000000..ad2527c
--- /dev/null
+++ b/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/api/dto/response/MyMonthlyReportResponse.java
@@ -0,0 +1,14 @@
+package com.devkor.ifive.nadab.domain.monthlyreport.api.dto.response;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+@Schema(description = "나의 월간 리포트 조회 응답")
+public record MyMonthlyReportResponse(
+
+        @Schema(description = "이번 월간 리포트", nullable = true)
+        MonthlyReportResponse report,
+
+        @Schema(description = "이전 월간 리포트", nullable = true)
+        MonthlyReportResponse previousReport
+) {
+}
\ No newline at end of file
diff --git a/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/application/MonthlyReportQueryService.java b/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/application/MonthlyReportQueryService.java
index 8108c7f..841d7f2 100644
--- a/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/application/MonthlyReportQueryService.java
+++ b/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/application/MonthlyReportQueryService.java
@@ -1,6 +1,8 @@
 package com.devkor.ifive.nadab.domain.monthlyreport.application;
 
 import com.devkor.ifive.nadab.domain.monthlyreport.api.dto.response.MonthlyReportResponse;
+import com.devkor.ifive.nadab.domain.monthlyreport.api.dto.response.MyMonthlyReportResponse;
+import com.devkor.ifive.nadab.domain.monthlyreport.application.mapper.MonthlyReportMapper;
 import com.devkor.ifive.nadab.domain.monthlyreport.core.entity.MonthlyReport;
 import com.devkor.ifive.nadab.domain.monthlyreport.core.entity.MonthlyReportStatus;
 import com.devkor.ifive.nadab.domain.monthlyreport.core.repository.MonthlyReportRepository;
@@ -22,25 +24,33 @@ public class MonthlyReportQueryService {
     private final MonthlyReportRepository monthlyReportRepository;
     private final UserRepository userRepository;
 
-    public MonthlyReportResponse getLastMonthMonthlyReport(Long userId) {
+    public MyMonthlyReportResponse getMyMonthlyReport(Long userId) {
         User user = userRepository.findById(userId)
                 .orElseThrow(() -> new NotFoundException(ErrorCode.USER_NOT_FOUND));
 
         MonthRangeDto range = MonthRangeCalculator.getLastMonthRange();
+        MonthlyReportResponse reportResponse =
+                monthlyReportRepository.findByUserIdAndMonthStartDateAndStatus(
+                                user.getId(),
+                                range.monthStartDate(),
+                                MonthlyReportStatus.COMPLETED
+                        )
+                        .map(report -> MonthlyReportMapper.toResponse(range, report))
+                        .orElse(null);
 
-        MonthlyReport report = monthlyReportRepository.findByUserIdAndMonthStartDate(user.getId(), range.monthStartDate())
-                .orElseThrow(() -> new NotFoundException(ErrorCode.MONTHLY_REPORT_NOT_FOUND));
-
-        if (report.getStatus() != MonthlyReportStatus.COMPLETED) {
-            throw new NotFoundException(ErrorCode.MONTHLY_REPORT_NOT_COMPLETED);
-        }
+        MonthRangeDto prevRange = MonthRangeCalculator.getTwoMonthsAgoRange();
+        MonthlyReportResponse prevResponse =
+                monthlyReportRepository.findByUserIdAndMonthStartDateAndStatus(
+                                user.getId(),
+                                prevRange.monthStartDate(),
+                                MonthlyReportStatus.COMPLETED
+                        )
+                        .map(report -> MonthlyReportMapper.toResponse(prevRange, report))
+                        .orElse(null);
 
-        return new MonthlyReportResponse(
-                range.monthStartDate().getMonthValue(),
-                report.getDiscovered(),
-                report.getGood(),
-                report.getImprove(),
-                report.getStatus().name()
+        return new MyMonthlyReportResponse(
+                reportResponse,
+                prevResponse
         );
     }
 
diff --git a/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/application/mapper/MonthlyReportMapper.java b/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/application/mapper/MonthlyReportMapper.java
new file mode 100644
index 0000000..39a21b5
--- /dev/null
+++ b/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/application/mapper/MonthlyReportMapper.java
@@ -0,0 +1,20 @@
+package com.devkor.ifive.nadab.domain.monthlyreport.application.mapper;
+
+import com.devkor.ifive.nadab.domain.monthlyreport.api.dto.response.MonthlyReportResponse;
+import com.devkor.ifive.nadab.domain.monthlyreport.core.entity.MonthlyReport;
+import com.devkor.ifive.nadab.global.shared.util.dto.MonthRangeDto;
+
+public final class MonthlyReportMapper {
+    private MonthlyReportMapper() {}
+
+    public static MonthlyReportResponse toResponse(MonthRangeDto range, MonthlyReport report) {
+        return new MonthlyReportResponse(
+                range.monthStartDate().getMonthValue(),
+                report.getDiscovered(),
+                report.getGood(),
+                report.getImprove(),
+                report.getStatus().name()
+        );
+    }
+}
+
diff --git a/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/core/repository/MonthlyReportRepository.java b/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/core/repository/MonthlyReportRepository.java
index b6b5b17..c64d8c0 100644
--- a/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/core/repository/MonthlyReportRepository.java
+++ b/src/main/java/com/devkor/ifive/nadab/domain/monthlyreport/core/repository/MonthlyReportRepository.java
@@ -14,6 +14,12 @@ public interface MonthlyReportRepository extends JpaRepository<MonthlyReport, Lo
 
     Optional<MonthlyReport> findByUserIdAndMonthStartDate(Long userId, LocalDate monthStartDate);
 
+    Optional<MonthlyReport> findByUserIdAndMonthStartDateAndStatus(
+            Long userId,
+            LocalDate monthStartDate,
+            MonthlyReportStatus status
+    );
+
     /**
      * PENDING -> COMPLETED 확정
      * - 분석 결과(discovered/good/improve) 저장
diff --git a/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/api/WeeklyReportController.java b/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/api/WeeklyReportController.java
index 2e5aa0e..11a55fa 100644
--- a/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/api/WeeklyReportController.java
+++ b/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/api/WeeklyReportController.java
@@ -1,6 +1,7 @@
 package com.devkor.ifive.nadab.domain.weeklyreport.api;
 
 import com.devkor.ifive.nadab.domain.weeklyreport.api.dto.response.CompletedCountResponse;
+import com.devkor.ifive.nadab.domain.weeklyreport.api.dto.response.MyWeeklyReportResponse;
 import com.devkor.ifive.nadab.domain.weeklyreport.api.dto.response.WeeklyReportResponse;
 import com.devkor.ifive.nadab.domain.weeklyreport.api.dto.response.WeeklyReportStartResponse;
 import com.devkor.ifive.nadab.domain.weeklyreport.application.WeeklyReportQueryService;
@@ -86,13 +87,18 @@ public ResponseEntity<ApiResponseDto<WeeklyReportStartResponse>> startWeeklyRepo
     @PreAuthorize("isAuthenticated()")
     @Operation(
             summary = "나의 주간 리포트 조회",
-            description = "사용자의 (지난 주) 주간 리포트를 조회합니다.",
+            description = """
+                    사용자의 (지난 주에 대한) 주간 리포트와 이전 주간 리포트를 조회합니다. </br>
+                    이때 ```report```혹은 ```previousReport```가 ```null```인 경우 해당 주간 리포트가 존재하지 않음을 의미합니다. </br>
+                    ```report```혹은 ```previousReport```가
+                    ```null```이 아닌 경우 ```status```필드는 항상 ```COMPLETED```입니다.
+                    """,
             security = @SecurityRequirement(name = "bearerAuth"),
             responses = {
                     @ApiResponse(
                             responseCode = "200",
                             description = "나의 주간 리포트 조회 성공",
-                            content = @Content(schema = @Schema(implementation = WeeklyReportResponse.class), mediaType = "application/json")
+                            content = @Content(schema = @Schema(implementation = MyWeeklyReportResponse.class), mediaType = "application/json")
                     ),
                     @ApiResponse(
                             responseCode = "401",
@@ -103,17 +109,15 @@ public ResponseEntity<ApiResponseDto<WeeklyReportStartResponse>> startWeeklyRepo
                             responseCode = "404",
                             description = """
                                     - ErrorCode: USER_NOT_FOUND - 사용자를 찾을 수 없음
-                                    - ErrorCode: WEEKLY_REPORT_NOT_FOUND - 주간 리포트를 찾을 수 없음
-                                    - ErrorCode: WEEKLY_REPORT_NOT_COMPLETED - 해당 주간 리포트가 아직 생성 완료되지 않음
                                     """,
                             content = @Content
                     )
             }
     )
-    public ResponseEntity<ApiResponseDto<WeeklyReportResponse>> getLastWeekWeeklyReport(
+    public ResponseEntity<ApiResponseDto<MyWeeklyReportResponse>> getMyWeeklyReport(
             @AuthenticationPrincipal UserPrincipal principal
     ) {
-        WeeklyReportResponse response = weeklyReportQueryService.getLastWeekWeeklyReport(principal.getId());
+        MyWeeklyReportResponse response = weeklyReportQueryService.getMyWeeklyReport(principal.getId());
         return ApiResponseEntity.ok(response);
     }
 
diff --git a/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/api/dto/response/MyWeeklyReportResponse.java b/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/api/dto/response/MyWeeklyReportResponse.java
new file mode 100644
index 0000000..835ddf4
--- /dev/null
+++ b/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/api/dto/response/MyWeeklyReportResponse.java
@@ -0,0 +1,14 @@
+package com.devkor.ifive.nadab.domain.weeklyreport.api.dto.response;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+@Schema(description = "나의 주간 리포트 조회 응답")
+public record MyWeeklyReportResponse(
+
+        @Schema(description = "이번 주간 리포트", nullable = true)
+        WeeklyReportResponse report,
+
+        @Schema(description = "이전 주간 리포트", nullable = true)
+        WeeklyReportResponse previousReport
+) {
+}
diff --git a/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/application/WeeklyReportQueryService.java b/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/application/WeeklyReportQueryService.java
index fa48203..5c55662 100644
--- a/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/application/WeeklyReportQueryService.java
+++ b/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/application/WeeklyReportQueryService.java
@@ -2,7 +2,9 @@
 
 import com.devkor.ifive.nadab.domain.user.core.entity.User;
 import com.devkor.ifive.nadab.domain.user.core.repository.UserRepository;
+import com.devkor.ifive.nadab.domain.weeklyreport.api.dto.response.MyWeeklyReportResponse;
 import com.devkor.ifive.nadab.domain.weeklyreport.api.dto.response.WeeklyReportResponse;
+import com.devkor.ifive.nadab.domain.weeklyreport.application.mapper.WeeklyReportMapper;
 import com.devkor.ifive.nadab.domain.weeklyreport.core.entity.WeeklyReport;
 import com.devkor.ifive.nadab.domain.weeklyreport.core.entity.WeeklyReportStatus;
 import com.devkor.ifive.nadab.domain.weeklyreport.core.repository.WeeklyReportRepository;
@@ -22,27 +24,32 @@ public class WeeklyReportQueryService {
     private final WeeklyReportRepository weeklyReportRepository;
     private final UserRepository userRepository;
 
-    public WeeklyReportResponse getLastWeekWeeklyReport(Long userId) {
+    public MyWeeklyReportResponse getMyWeeklyReport(Long userId) {
         User user = userRepository.findById(userId)
                 .orElseThrow(() -> new NotFoundException(ErrorCode.USER_NOT_FOUND));
 
         WeekRangeDto range = WeekRangeCalculator.getLastWeekRange();
+        WeeklyReportResponse reportResponse =
+                weeklyReportRepository.findByUserIdAndWeekStartDateAndStatus(
+                                user.getId(),
+                                range.weekStartDate(),
+                                WeeklyReportStatus.COMPLETED
+                        ).
+                        map(report -> WeeklyReportMapper.toResponse(range, report))
+                        .orElse(null);
 
-        WeeklyReport report = weeklyReportRepository.findByUserAndWeekStartDate(user, range.weekStartDate())
-                .orElseThrow(() -> new NotFoundException(ErrorCode.WEEKLY_REPORT_NOT_FOUND));
 
-        if (report.getStatus() != WeeklyReportStatus.COMPLETED) {
-            throw new NotFoundException(ErrorCode.WEEKLY_REPORT_NOT_COMPLETED);
-        }
+        WeekRangeDto prevRange = WeekRangeCalculator.getTwoWeeksAgoRange();
+        WeeklyReportResponse prevReportResponse =
+                weeklyReportRepository.findByUserIdAndWeekStartDateAndStatus(
+                                user.getId(),
+                                prevRange.weekStartDate(),
+                                WeeklyReportStatus.COMPLETED
+                        )
+                        .map(report -> WeeklyReportMapper.toResponse(prevRange, report))
+                        .orElse(null);
 
-        return new WeeklyReportResponse(
-                range.weekStartDate().getMonthValue(),
-                WeekRangeCalculator.getWeekOfMonth(range),
-                report.getDiscovered(),
-                report.getGood(),
-                report.getImprove(),
-                report.getStatus().name()
-        );
+        return new MyWeeklyReportResponse(reportResponse, prevReportResponse);
     }
 
     public WeeklyReportResponse getWeeklyReportById(Long id) {
diff --git a/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/application/mapper/WeeklyReportMapper.java b/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/application/mapper/WeeklyReportMapper.java
new file mode 100644
index 0000000..d1ea6c7
--- /dev/null
+++ b/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/application/mapper/WeeklyReportMapper.java
@@ -0,0 +1,22 @@
+package com.devkor.ifive.nadab.domain.weeklyreport.application.mapper;
+
+import com.devkor.ifive.nadab.domain.weeklyreport.api.dto.response.WeeklyReportResponse;
+import com.devkor.ifive.nadab.domain.weeklyreport.core.entity.WeeklyReport;
+import com.devkor.ifive.nadab.global.shared.util.WeekRangeCalculator;
+import com.devkor.ifive.nadab.global.shared.util.dto.WeekRangeDto;
+
+public final class WeeklyReportMapper {
+    private WeeklyReportMapper() {}
+
+    public static WeeklyReportResponse toResponse(WeekRangeDto range, WeeklyReport report) {
+        return new WeeklyReportResponse(
+                range.weekStartDate().getMonthValue(),
+                WeekRangeCalculator.getWeekOfMonth(range),
+                report.getDiscovered(),
+                report.getGood(),
+                report.getImprove(),
+                report.getStatus().name()
+        );
+    }
+}
+
diff --git a/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/core/repository/WeeklyReportRepository.java b/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/core/repository/WeeklyReportRepository.java
index a0c7ef4..379a8e8 100644
--- a/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/core/repository/WeeklyReportRepository.java
+++ b/src/main/java/com/devkor/ifive/nadab/domain/weeklyreport/core/repository/WeeklyReportRepository.java
@@ -19,6 +19,12 @@ public interface WeeklyReportRepository extends JpaRepository<WeeklyReport, Long
      */
     Optional<WeeklyReport> findByUserAndWeekStartDate(User user, LocalDate weekStartDate);
 
+    Optional<WeeklyReport> findByUserIdAndWeekStartDateAndStatus(
+            Long userId,
+            LocalDate weekStartDate,
+            WeeklyReportStatus status
+    );
+
     /**
      * PENDING -> COMPLETED 확정
      * - 분석 결과(discovered/good/improve) 저장
diff --git a/src/main/java/com/devkor/ifive/nadab/global/shared/util/MonthRangeCalculator.java b/src/main/java/com/devkor/ifive/nadab/global/shared/util/MonthRangeCalculator.java
index db7be2e..d179429 100644
--- a/src/main/java/com/devkor/ifive/nadab/global/shared/util/MonthRangeCalculator.java
+++ b/src/main/java/com/devkor/ifive/nadab/global/shared/util/MonthRangeCalculator.java
@@ -32,6 +32,15 @@ public static MonthRangeDto getLastMonthRange() {
         return monthRangeOf(lastMonthDate);
     }
 
+    /**
+     * KST 기준 "2달 전" 범위를 반환합니다.
+     */
+    public static MonthRangeDto getTwoMonthsAgoRange() {
+        LocalDate today = LocalDate.now(KST);
+        LocalDate lastMonthDate = today.minusMonths(2);
+        return monthRangeOf(lastMonthDate);
+    }
+
     /**
      * KST 기준 "이번 달" 범위를 반환합니다.
      */
diff --git a/src/main/java/com/devkor/ifive/nadab/global/shared/util/WeekRangeCalculator.java b/src/main/java/com/devkor/ifive/nadab/global/shared/util/WeekRangeCalculator.java
index 26eda8f..eb72771 100644
--- a/src/main/java/com/devkor/ifive/nadab/global/shared/util/WeekRangeCalculator.java
+++ b/src/main/java/com/devkor/ifive/nadab/global/shared/util/WeekRangeCalculator.java
@@ -32,6 +32,15 @@ public static WeekRangeDto getLastWeekRange() {
         return weekRangeOf(lastWeekDate);
     }
 
+    /**
+     * 월요일 시작 ~ 일요일 종료 기준의 "2주 전" 범위를 반환합니다.
+     */
+    public static WeekRangeDto getTwoWeeksAgoRange() {
+        LocalDate today = LocalDate.now(KST);
+        LocalDate twoWeeksAgoDate = today.minusWeeks(2);
+        return weekRangeOf(twoWeeksAgoDate);
+    }
+
     /**
      * 주어진 WeekRange가 해당 월의 몇 주차인지 반환합니다.
      * (월요일 시작 기준, 해당 주의 월요일이 속한 달 기준)