diff --git a/dictation_server/src/api/odms/openapi.json b/dictation_server/src/api/odms/openapi.json
index 9c048cc..2ce696b 100644
--- a/dictation_server/src/api/odms/openapi.json
+++ b/dictation_server/src/api/odms/openapi.json
@@ -696,6 +696,58 @@
         "tags": ["accounts"]
       }
     },
+    "/accounts/issue/cancel": {
+      "post": {
+        "operationId": "cancelIssue",
+        "summary": "",
+        "description": "ライセンス発行をキャンセルします",
+        "parameters": [],
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": { "$ref": "#/components/schemas/CancelIssueRequest" }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "成功時のレスポンス",
+            "content": {
+              "application/json": {
+                "schema": { "$ref": "#/components/schemas/CancelIssueResponse" }
+              }
+            }
+          },
+          "400": {
+            "description": "対象注文のステータスが発行済以外/発行日から15日以降/ライセンスをユーザに割り当てている",
+            "content": {
+              "application/json": {
+                "schema": { "$ref": "#/components/schemas/ErrorResponse" }
+              }
+            }
+          },
+          "401": {
+            "description": "認証エラー",
+            "content": {
+              "application/json": {
+                "schema": { "$ref": "#/components/schemas/ErrorResponse" }
+              }
+            }
+          },
+          "500": {
+            "description": "想定外のサーバーエラー",
+            "content": {
+              "application/json": {
+                "schema": { "$ref": "#/components/schemas/ErrorResponse" }
+              }
+            }
+          }
+        },
+        "tags": ["accounts"],
+        "security": [{ "bearer": [] }]
+      }
+    },
     "/users/confirm": {
       "post": {
         "operationId": "confirmUser",
@@ -2138,6 +2190,7 @@
       "post": {
         "operationId": "cancelOrder",
         "summary": "",
+        "description": "ライセンス注文をキャンセルします",
         "parameters": [],
         "requestBody": {
           "required": true,
@@ -2572,6 +2625,18 @@
         },
         "required": ["dealers"]
       },
+      "CancelIssueRequest": {
+        "type": "object",
+        "properties": {
+          "orderedAccountId": {
+            "type": "number",
+            "description": "注文元アカウントID"
+          },
+          "poNumber": { "type": "string", "description": "POナンバー" }
+        },
+        "required": ["orderedAccountId", "poNumber"]
+      },
+      "CancelIssueResponse": { "type": "object", "properties": {} },
       "ConfirmRequest": {
         "type": "object",
         "properties": { "token": { "type": "string" } },
diff --git a/dictation_server/src/features/accounts/accounts.controller.ts b/dictation_server/src/features/accounts/accounts.controller.ts
index a16086e..b74c9a3 100644
--- a/dictation_server/src/features/accounts/accounts.controller.ts
+++ b/dictation_server/src/features/accounts/accounts.controller.ts
@@ -40,6 +40,8 @@ import {
   GetTypistGroupRequest,
   UpdateTypistGroupRequest,
   UpdateTypistGroupRequestParam,
+  CancelIssueRequest,
+  CancelIssueResponse,
 } from './types/types';
 import { USER_ROLES, ADMIN_ROLES, TIERS } from '../../constants';
 import { AuthGuard } from '../../common/guards/auth/authguards';
@@ -568,4 +570,56 @@ export class AccountsController {
   async getDealers(): Promise<GetDealersResponse> {
     return await this.accountService.getDealers();
   }
+
+  @Post('/issue/cancel')
+  @ApiResponse({
+    status: HttpStatus.OK,
+    type: CancelIssueResponse,
+    description: '成功時のレスポンス',
+  })
+  @ApiResponse({
+    status: HttpStatus.BAD_REQUEST,
+    description:
+      '対象注文のステータスが発行済以外/発行日から15日以降/ライセンスをユーザに割り当てている',
+    type: ErrorResponse,
+  })
+  @ApiResponse({
+    status: HttpStatus.UNAUTHORIZED,
+    description: '認証エラー',
+    type: ErrorResponse,
+  })
+  @ApiResponse({
+    status: HttpStatus.INTERNAL_SERVER_ERROR,
+    description: '想定外のサーバーエラー',
+    type: ErrorResponse,
+  })
+  @ApiOperation({
+    operationId: 'cancelIssue',
+    description: 'ライセンス発行をキャンセルします',
+  })
+  @ApiBearerAuth()
+  @UseGuards(AuthGuard)
+  @UseGuards(
+    RoleGuard.requireds({
+      roles: [ADMIN_ROLES.ADMIN],
+      tiers: [TIERS.TIER1, TIERS.TIER2],
+    }),
+  )
+  async cancelIssue(
+    @Req() req: Request,
+    @Body() body: CancelIssueRequest,
+  ): Promise<CancelIssueResponse> {
+    const token = retrieveAuthorizationToken(req);
+    const payload = jwt.decode(token, { json: true }) as AccessToken;
+
+    const context = makeContext(payload.userId);
+
+    // TODO: 発行キャンセル処理（仮）。API実装のタスク（2498）で本実装
+    // await this.accountService.cancelIssue(
+    //   context,
+    //   body.poNumber,
+    //   body.orderedAccountId,
+    // );
+    return {};
+  }
 }
diff --git a/dictation_server/src/features/accounts/types/types.ts b/dictation_server/src/features/accounts/types/types.ts
index f87ec15..98d0b6d 100644
--- a/dictation_server/src/features/accounts/types/types.ts
+++ b/dictation_server/src/features/accounts/types/types.ts
@@ -320,3 +320,14 @@ export class GetDealersResponse {
   @ApiProperty({ type: [Dealer] })
   dealers: Dealer[];
 }
+
+export class CancelIssueRequest {
+  @ApiProperty({ description: '注文元アカウントID' })
+  orderedAccountId: number;
+
+  @ApiProperty({ description: 'POナンバー' })
+  @Matches(/^[A-Z0-9]+$/)
+  poNumber: string;
+}
+
+export class CancelIssueResponse {}