diff --git a/prisma/migrations/20260531130053_add_aoj_university_to_contest_type/migration.sql b/prisma/migrations/20260531130053_add_aoj_university_to_contest_type/migration.sql
new file mode 100644
index 000000000..5f0b86460
--- /dev/null
+++ b/prisma/migrations/20260531130053_add_aoj_university_to_contest_type/migration.sql
@@ -0,0 +1,2 @@
+-- AlterEnum
+ALTER TYPE "ContestType" ADD VALUE 'AOJ_UNIVERSITY';
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index e6b28ba97..75e189678 100755
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -323,6 +323,7 @@ enum ContestType {
   AOJ_PCK // All-Japan High School Programming Contest (PCK)
   AOJ_ICPC // ICPC (International Collegiate Programming Contest)
   AOJ_JAG // ACM-ICPC Japan Alumni Group Contest (JAG)
+  AOJ_UNIVERSITY // University Programming Contest (RUPC, HUPC, UAPC)
 }
 
 // 11Q(最も簡単)〜6D(最難関)。
diff --git a/prisma/tasks.ts b/prisma/tasks.ts
index b2f9534d2..b728a0d75 100755
--- a/prisma/tasks.ts
+++ b/prisma/tasks.ts
@@ -11973,4 +11973,25 @@ export const tasks = [
     name: 'World Trip',
     title: '2349. World Trip',
   },
+  {
+    id: '3058',
+    contest_id: 'AOJ-UAPC2019-in-RUPC2019-day2',
+    problem_index: '3058',
+    name: 'Ghost',
+    title: '3058. Ghost',
+  },
+  {
+    id: '2903',
+    contest_id: 'AOJ-RUPC2018-in-ACPC2018-day1',
+    problem_index: '2903',
+    name: 'Board',
+    title: '2903. Board',
+  },
+  {
+    id: '3171',
+    contest_id: 'AOJ-HUPC2020-in-HUPC2020-day1',
+    problem_index: '3171',
+    name: 'Traditional Company',
+    title: '3171. Traditional Company',
+  },
 ];
diff --git a/src/lib/types/contest.ts b/src/lib/types/contest.ts
index e2758739b..d60f9a20b 100644
--- a/src/lib/types/contest.ts
+++ b/src/lib/types/contest.ts
@@ -53,6 +53,7 @@ export const ContestType: { [key in ContestTypeOrigin]: key } = {
   AOJ_PCK: 'AOJ_PCK', // All-Japan High School Programming Contest (PCK)
   AOJ_ICPC: 'AOJ_ICPC', // ICPC (International Collegiate Programming Contest)
   AOJ_JAG: 'AOJ_JAG', // ACM-ICPC Japan Alumni Group Contest (JAG)
+  AOJ_UNIVERSITY: 'AOJ_UNIVERSITY', // University Programming Contest (RUPC, HUPC, UAPC)
 } as const;
 
 // Re-exporting the original type with the original name.
diff --git a/src/lib/utils/contest.ts b/src/lib/utils/contest.ts
index 803c5d045..70d975c7a 100644
--- a/src/lib/utils/contest.ts
+++ b/src/lib/utils/contest.ts
@@ -1,6 +1,7 @@
 import { ContestType, type ContestPrefix, type ContestLabelTranslations } from '$lib/types/contest';
 
-const regexForJag = /^JAG(Prelim|Regional|Summer|Winter|Spring)\d{4}(-day\d+[A-Z]?)?$/;
+export const regexForJag = /^JAG(Prelim|Regional|Summer|Winter|Spring)\d{4}(-day\d+[A-Z]?)?$/;
+export const regexForAojUniversity = /^AOJ-[A-Z]+PC\d{4}/;
 
 // See:
 // https://github.com/kenkoooo/AtCoderProblems/blob/master/atcoder-problems-frontend/src/utils/ContestClassifier.ts
@@ -107,6 +108,10 @@ export const classifyContest = (contest_id: string) => {
     return ContestType.AOJ_JAG;
   }
 
+  if (regexForAojUniversity.test(contest_id)) {
+    return ContestType.AOJ_UNIVERSITY;
+  }
+
   return null;
 };
 
@@ -271,13 +276,13 @@ export function getContestPrefixes(contestPrefixes: Record<string, string>) {
 }
 
 /**
- * Contest type priorities (0 = Highest, 24 = Lowest)
+ * Contest type priorities (0 = Highest, 25 = Lowest)
  *
  * Priority assignment rationale:
  * - Educational contests (0-11, 17): ABS, ABC, APG4B and AWC etc.
  * - Contests for genius (12-16): ARC, AGC, and their variants
  * - Special contests (18-20): UNIVERSITY, FPS_24, OTHERS
- * - External platforms (21-24): AOJ_COURSES, AOJ_PCK, AOJ_ICPC, AOJ_JAG
+ * - External platforms (21-25): AOJ_COURSES, AOJ_PCK, AOJ_ICPC, AOJ_JAG, AOJ_UNIVERSITY
  *
  * @remarks
  * HACK: The priorities for ARC, AGC, UNIVERSITY, AOJ_COURSES, and AOJ_PCK are temporary
@@ -312,6 +317,7 @@ export const contestTypePriorities: Map<ContestType, number> = new Map([
   [ContestType.AOJ_PCK, 22],
   [ContestType.AOJ_ICPC, 23],
   [ContestType.AOJ_JAG, 24],
+  [ContestType.AOJ_UNIVERSITY, 25],
 ]);
 
 export function getContestPriority(contestId: string): number {
@@ -462,6 +468,10 @@ export const getContestNameLabel = (contestId: string) => {
     return getAojContestLabel(JAG_TRANSLATIONS, contestId);
   }
 
+  if (regexForAojUniversity.test(contestId)) {
+    return getAojUniversityContestLabel(contestId);
+  }
+
   return contestId.toUpperCase();
 };
 
@@ -689,6 +699,17 @@ const PCK_TRANSLATIONS = {
   Final: ' 本選 ',
 };
 
+function getAojUniversityContestLabel(contestId: string): string {
+  const label = contestId
+    .replace(/^AOJ-/, '')
+    .replace(/UAPC/g, 'ACPC')
+    .replace(/([A-Z]{2,})(\d{4})/g, '$1 $2')
+    .replace(/-in-/, ' in ')
+    .replace(/-day(\d+)/, ' Day$1')
+    .replace(/-summer/, ' Summer');
+  return '（' + label + '）';
+}
+
 /**
  * Maps JAG contest type abbreviations to their Japanese translations.
  *
@@ -740,6 +761,7 @@ function isAojContest(contestId: string): boolean {
     aojCoursePrefixes.has(contestId) ||
     contestId.startsWith('PCK') ||
     regexForJag.test(contestId) ||
-    contestId.startsWith('ICPC')
+    contestId.startsWith('ICPC') ||
+    regexForAojUniversity.test(contestId)
   );
 }
diff --git a/src/lib/utils/task.ts b/src/lib/utils/task.ts
index 3f384e5a4..3827cf94b 100644
--- a/src/lib/utils/task.ts
+++ b/src/lib/utils/task.ts
@@ -5,7 +5,12 @@ import type { UrlGenerator, UrlGenerators } from '$lib/types/url';
 import { type WorkBookTaskBase } from '$features/workbooks/types/workbook';
 
 import { ATCODER_BASE_CONTEST_URL, AOJ_TASKS_URL } from '$lib/constants/urls';
-import { getPrefixForAojCourses, getContestPriority } from '$lib/utils/contest';
+import {
+  getPrefixForAojCourses,
+  getContestPriority,
+  regexForAojUniversity,
+  regexForJag,
+} from '$lib/utils/contest';
 
 // TODO: Codeforces、yukicoder、BOJなどに対応できるようにする
 /**
@@ -36,8 +41,9 @@ class AojGenerator implements UrlGenerator {
     return (
       getPrefixForAojCourses().includes(contestId) ||
       contestId.startsWith('PCK') ||
-      contestId.startsWith('JAG') ||
-      contestId.startsWith('ICPC')
+      regexForJag.test(contestId) ||
+      contestId.startsWith('ICPC') ||
+      regexForAojUniversity.test(contestId)
     );
   }
 
diff --git a/src/test/lib/utils/contest.test.ts b/src/test/lib/utils/contest.test.ts
index dea8e29dd..85404122d 100644
--- a/src/test/lib/utils/contest.test.ts
+++ b/src/test/lib/utils/contest.test.ts
@@ -229,6 +229,14 @@ describe('Contest', () => {
           });
         });
       });
+
+      describe('when contest_id means AOJ University (RUPC, HUPC, UAPC)', () => {
+        TestCasesForContestType.aojUniversity.forEach(({ name, value }) => {
+          runTests(`${name}`, [value], ({ contestId, expected }: TestCaseForContestType) => {
+            expect(classifyContest(contestId)).toEqual(expected);
+          });
+        });
+      });
     });
   });
 
@@ -435,6 +443,14 @@ describe('Contest', () => {
           });
         });
       });
+
+      describe('when contest_id means AOJ University (RUPC, HUPC, UAPC)', () => {
+        TestCasesForContestType.aojUniversity.forEach(({ name, value }) => {
+          runTests(`${name}`, [value], ({ contestId, expected }: TestCaseForContestType) => {
+            expect(getContestPriority(contestId)).toEqual(contestTypePriorities.get(expected));
+          });
+        });
+      });
     });
   });
 
@@ -530,6 +546,14 @@ describe('Contest', () => {
           });
         });
       });
+
+      describe('when contest_id means AOJ University (RUPC, HUPC, UAPC)', () => {
+        TestCasesForContestNameLabel.aojUniversity.forEach(({ name, value }) => {
+          runTests(`${name}`, [value], ({ contestId, expected }: TestCaseForContestNameLabel) => {
+            expect(getContestNameLabel(contestId)).toEqual(expected);
+          });
+        });
+      });
     });
   });
 
@@ -725,6 +749,18 @@ describe('Contest', () => {
           );
         });
       });
+
+      describe('when contest_id means AOJ University (RUPC, HUPC, UAPC)', () => {
+        TestCasesForContestNameAndTaskIndex.aojUniversity.forEach(({ name, value }) => {
+          runTests(
+            `${name}`,
+            [value],
+            ({ contestId, taskTableIndex, expected }: TestCaseForContestNameAndTaskIndex) => {
+              expect(addContestNameToTaskIndex(contestId, taskTableIndex)).toEqual(expected);
+            },
+          );
+        });
+      });
     });
   });
 
diff --git a/src/test/lib/utils/task.test.ts b/src/test/lib/utils/task.test.ts
index ee6984523..f069db06a 100644
--- a/src/test/lib/utils/task.test.ts
+++ b/src/test/lib/utils/task.test.ts
@@ -107,6 +107,14 @@ describe('Task', () => {
         });
       });
     });
+
+    describe('when contest ids and task ids for AOJ University (RUPC, HUPC, UAPC) are given', () => {
+      TestCasesForTaskUrl.aojUniversity.forEach(({ name, value }) => {
+        runTests(`${name}`, [value], ({ contestId, taskId, expected }: TestCaseForTaskUrl) => {
+          expect(getTaskUrl(contestId, taskId)).toBe(expected);
+        });
+      });
+    });
   });
 
   describe('count accepted tasks', () => {
diff --git a/src/test/lib/utils/test_cases/contest_name_and_task_index.ts b/src/test/lib/utils/test_cases/contest_name_and_task_index.ts
index b877863ce..dd7366111 100644
--- a/src/test/lib/utils/test_cases/contest_name_and_task_index.ts
+++ b/src/test/lib/utils/test_cases/contest_name_and_task_index.ts
@@ -888,3 +888,41 @@ const generateAojIcpcTestCases = (
 export const aojIcpc = Object.entries(AOJ_ICPC_TEST_DATA).flatMap(([contestId, tasks]) =>
   generateAojIcpcTestCases(Array(tasks.tasks.length).fill(contestId), tasks.tasks),
 );
+
+const AOJ_UNIVERSITY_TEST_DATA = [
+  {
+    contestId: 'AOJ-RUPC2018-in-ACPC2018-day1',
+    taskTableIndex: '2903',
+    expected: 'AOJ 2903（RUPC 2018 in ACPC 2018 Day1）',
+  },
+  {
+    contestId: 'AOJ-UAPC2019-in-RUPC2019-day2',
+    taskTableIndex: '3058',
+    expected: 'AOJ 3058（ACPC 2019 in RUPC 2019 Day2）',
+  },
+  {
+    contestId: 'AOJ-HUPC2020-in-HUPC2020-day1',
+    taskTableIndex: '3171',
+    expected: 'AOJ 3171（HUPC 2020 in HUPC 2020 Day1）',
+  },
+  { contestId: 'AOJ-UAPC2003', taskTableIndex: '1000', expected: 'AOJ 1000（ACPC 2003）' },
+  {
+    contestId: 'AOJ-UAPC2011-summer',
+    taskTableIndex: '1001',
+    expected: 'AOJ 1001（ACPC 2011 Summer）',
+  },
+  {
+    contestId: 'AOJ-UAPC2012-day1',
+    taskTableIndex: '1002',
+    expected: 'AOJ 1002（ACPC 2012 Day1）',
+  },
+];
+
+export const aojUniversity = AOJ_UNIVERSITY_TEST_DATA.map(
+  ({ contestId, taskTableIndex, expected }) =>
+    createTestCaseForContestNameAndTaskIndex(`AOJ, ${contestId} - ${taskTableIndex}`)({
+      contestId,
+      taskTableIndex,
+      expected,
+    }),
+);
diff --git a/src/test/lib/utils/test_cases/contest_name_labels.ts b/src/test/lib/utils/test_cases/contest_name_labels.ts
index 7e1681ea3..fb7bd7f58 100644
--- a/src/test/lib/utils/test_cases/contest_name_labels.ts
+++ b/src/test/lib/utils/test_cases/contest_name_labels.ts
@@ -124,3 +124,30 @@ export const aojIcpc = [
     expected: '（ICPC 地区予選 2023）',
   }),
 ];
+
+export const aojUniversity = [
+  createTestCaseForContestNameLabel('AOJ, RUPC 2018 in ACPC 2018 Day1')({
+    contestId: 'AOJ-RUPC2018-in-ACPC2018-day1',
+    expected: '（RUPC 2018 in ACPC 2018 Day1）',
+  }),
+  createTestCaseForContestNameLabel('AOJ, HUPC 2020 in HUPC 2020 Day1')({
+    contestId: 'AOJ-HUPC2020-in-HUPC2020-day1',
+    expected: '（HUPC 2020 in HUPC 2020 Day1）',
+  }),
+  createTestCaseForContestNameLabel('AOJ, UAPC 2019 in RUPC 2019 Day2')({
+    contestId: 'AOJ-UAPC2019-in-RUPC2019-day2',
+    expected: '（ACPC 2019 in RUPC 2019 Day2）',
+  }),
+  createTestCaseForContestNameLabel('AOJ, UAPC 2003')({
+    contestId: 'AOJ-UAPC2003',
+    expected: '（ACPC 2003）',
+  }),
+  createTestCaseForContestNameLabel('AOJ, UAPC 2011 Summer')({
+    contestId: 'AOJ-UAPC2011-summer',
+    expected: '（ACPC 2011 Summer）',
+  }),
+  createTestCaseForContestNameLabel('AOJ, UAPC 2012 Day1')({
+    contestId: 'AOJ-UAPC2012-day1',
+    expected: '（ACPC 2012 Day1）',
+  }),
+];
diff --git a/src/test/lib/utils/test_cases/contest_type.ts b/src/test/lib/utils/test_cases/contest_type.ts
index 6dfdc8e20..7463da6ff 100644
--- a/src/test/lib/utils/test_cases/contest_type.ts
+++ b/src/test/lib/utils/test_cases/contest_type.ts
@@ -665,3 +665,19 @@ export const aojIcpc = aojIcpcContestData.map(({ name, contestId }) =>
     expected: ContestType.AOJ_ICPC,
   }),
 );
+
+const aojUniversityContestData = [
+  { name: 'AOJ, RUPC 2018 in ACPC 2018 Day1', contestId: 'AOJ-RUPC2018-in-ACPC2018-day1' },
+  { name: 'AOJ, HUPC 2020 in HUPC 2020 Day1', contestId: 'AOJ-HUPC2020-in-HUPC2020-day1' },
+  { name: 'AOJ, UAPC 2019 in RUPC 2019 Day2', contestId: 'AOJ-UAPC2019-in-RUPC2019-day2' },
+  { name: 'AOJ, UAPC 2003', contestId: 'AOJ-UAPC2003' },
+  { name: 'AOJ, UAPC 2011 Summer', contestId: 'AOJ-UAPC2011-summer' },
+  { name: 'AOJ, UAPC 2012 Day1', contestId: 'AOJ-UAPC2012-day1' },
+];
+
+export const aojUniversity = aojUniversityContestData.map(({ name, contestId }) =>
+  createTestCaseForContestType(name)({
+    contestId,
+    expected: ContestType.AOJ_UNIVERSITY,
+  }),
+);
diff --git a/src/test/lib/utils/test_cases/task_url.ts b/src/test/lib/utils/test_cases/task_url.ts
index 49f518d51..abbbb8758 100644
--- a/src/test/lib/utils/test_cases/task_url.ts
+++ b/src/test/lib/utils/test_cases/task_url.ts
@@ -195,3 +195,20 @@ export const aojIcpc = icpcContests.flatMap((icpc) =>
     });
   }),
 );
+
+// AOJ University contests: contest ID = AOJ-{NAME}PC{YEAR}[-...], task ID = numeric problem ID
+const aojUniversityContests = [
+  { contestId: 'AOJ-RUPC2018-in-ACPC2018-day1', tasks: ['2903', '2904'] },
+  { contestId: 'AOJ-UAPC2019-in-RUPC2019-day2', tasks: ['3058', '3059'] },
+  { contestId: 'AOJ-HUPC2020-in-HUPC2020-day1', tasks: ['3171', '3172'] },
+];
+
+export const aojUniversity = aojUniversityContests.flatMap((contest) =>
+  contest.tasks.map((task) => {
+    return createTestCaseForTaskUrl(`AOJ University, ${contest.contestId} ${task}`)({
+      contestId: contest.contestId,
+      taskId: task,
+      expected: `${AOJ_TASKS_URL}/${task}`,
+    });
+  }),
+);