diff --git a/api/src/main/java/org/yapp/domain/report/application/ReportService.java b/api/src/main/java/org/yapp/domain/report/application/ReportService.java
new file mode 100644
index 0000000..d125849
--- /dev/null
+++ b/api/src/main/java/org/yapp/domain/report/application/ReportService.java
@@ -0,0 +1,32 @@
+package org.yapp.domain.report.application;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.yapp.domain.report.Report;
+import org.yapp.domain.report.dao.ReportRepository;
+import org.yapp.domain.report.dto.request.UserReportRequest;
+import org.yapp.domain.user.User;
+import org.yapp.domain.user.application.UserService;
+
+@Service
+@RequiredArgsConstructor
+public class ReportService {
+
+  private final ReportRepository reportRepository;
+  private final UserService userService;
+
+  /**
+   * 유저 신고 기능
+   *
+   * @param reporterId        신고하는 유저의 아이디
+   * @param userReportRequest 신고 요청
+   * @return 신고 객체
+   */
+  public Report reportUser(Long reporterId, UserReportRequest userReportRequest) {
+    User reporter = userService.getUserById(reporterId);
+    User reportedUser = userService.getUserById(userReportRequest.getReportedUserId());
+    Report report = Report.builder().reporter(reporter).reportedUser(reportedUser)
+        .reason(userReportRequest.getReason()).build();
+    return reportRepository.save(report);
+  }
+}
diff --git a/api/src/main/java/org/yapp/domain/report/controller/ReportController.java b/api/src/main/java/org/yapp/domain/report/controller/ReportController.java
new file mode 100644
index 0000000..7e4a9af
--- /dev/null
+++ b/api/src/main/java/org/yapp/domain/report/controller/ReportController.java
@@ -0,0 +1,33 @@
+package org.yapp.domain.report.controller;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import jakarta.validation.Valid;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import org.yapp.domain.report.application.ReportService;
+import org.yapp.domain.report.dto.request.UserReportRequest;
+import org.yapp.util.CommonResponse;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/api/reports")
+public class ReportController {
+
+  public final ReportService reportService;
+
+  @PostMapping()
+  @Operation(summary = "유저 신고", description = "유저를 신고합니다.", tags = {
+      "신고"})
+  @ApiResponse(responseCode = "200", description = "유저를 성공적으로 신고하였습니다.")
+  public ResponseEntity<CommonResponse<Void>> reportUser(@AuthenticationPrincipal Long userId,
+      @RequestBody @Valid UserReportRequest request) {
+    reportService.reportUser(userId, request);
+    return ResponseEntity.ok(CommonResponse.createSuccessWithNoContent());
+  }
+}
diff --git a/api/src/main/java/org/yapp/domain/report/dao/ReportRepository.java b/api/src/main/java/org/yapp/domain/report/dao/ReportRepository.java
new file mode 100644
index 0000000..2000ada
--- /dev/null
+++ b/api/src/main/java/org/yapp/domain/report/dao/ReportRepository.java
@@ -0,0 +1,10 @@
+package org.yapp.domain.report.dao;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.yapp.domain.report.Report;
+import org.yapp.domain.user.User;
+
+public interface ReportRepository extends JpaRepository<Report, Long> {
+
+  boolean existsReportByReporterAndReportedUser(User reporter, User reportedUser);
+}
diff --git a/api/src/main/java/org/yapp/domain/report/dto/request/UserReportRequest.java b/api/src/main/java/org/yapp/domain/report/dto/request/UserReportRequest.java
new file mode 100644
index 0000000..0aaff2c
--- /dev/null
+++ b/api/src/main/java/org/yapp/domain/report/dto/request/UserReportRequest.java
@@ -0,0 +1,17 @@
+package org.yapp.domain.report.dto.request;
+
+import jakarta.validation.constraints.NotNull;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import org.hibernate.validator.constraints.Length;
+
+@NoArgsConstructor
+@Getter
+public class UserReportRequest {
+
+  @NotNull
+  private Long reportedUserId;
+  @NotNull
+  @Length(min = 1, max = 100)
+  private String reason;
+}
diff --git a/common/src/main/java/org/yapp/error/dto/ReportErrorCode.java b/common/src/main/java/org/yapp/error/dto/ReportErrorCode.java
new file mode 100644
index 0000000..e9372b4
--- /dev/null
+++ b/common/src/main/java/org/yapp/error/dto/ReportErrorCode.java
@@ -0,0 +1,15 @@
+package org.yapp.error.dto;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+
+@Getter
+@RequiredArgsConstructor
+public enum ReportErrorCode implements ErrorCode {
+  ALREADY_REPORTED(HttpStatus.BAD_REQUEST, "이미 신고한 유저입니다."),
+  ;
+
+  private final HttpStatus httpStatus;
+  private final String message;
+}