Old Karimganj (Hindi: पुरानी करीमगंज, IAST: Purānī Karīmagaṃja; Urdu: پرانی کریم گنج, romanized: Purānī Karīmganj), also spelled as Old Kareemganj or simply Karimganj, is a residential neighborhood under the Civil Lines thana[1] zone of Gaya, Bihar, India, inhabited mostly by Muslims.

[2] Forming the eastern wing of the larger Karimganj neighborhood, it shares its proximity with New Karimganj neighborhood to the west[3] and Jagdeo Nagar to the north.

The locality is popular for serving the Karimganj Cemetery[2] and infamous for its congested alleyways and poor drainage infrastructure.

[4][5] Old Karimganj is the literal translation of Hindi-Urdu Purānī Karīmganj.

The Hindi-Urdu purānī (Hindi: पुरानी; Urdu: پرانی) literally means "old" meanwhile the Arabic word karīm (Arabic: كَرِيم) translates to "kind" or "noble" whereas the Middle Persian word ganj (Persian: گنج) means "treasured place" or "neighborhood".