| Kumudini Hajong | |
| Birth Date: | 1929/1930 |
| Birth Place: | Mymensingh District, British Bengal |
| Death Place: | Baheratoli, Durgapur Upazila, Netrokona District, Bangladesh |
| Nationality: | Bangladeshi |
| Known For: | Tanka movement |
| Awards: | Bangla Academy Fellowship (2019) |
Kumudini Hajong (bn|কুমুদিনী হাজং; 1929/1930 – 23 March 2024) was a Bangladeshi Hajong revolutionary, indigenous and secular rights activist known for her role in the Tanka movement during the British Raj.[1] She received a Bangla Academy Fellowship in 2019 for her contribution to social welfare.
Hajong was born in at Baheratoli village in Mymensingh (present-day Durgapur Upazila, Netrokona) in the former Bengal Presidency of British India to Authit Chandra Roy Hajong and Jonomoni Hajong.[2]
Hajong was married to Lonkshwer Hajong. He died in 2000.[1] The couple had three sons and two daughters.[3] She died at her home on 23 March 2024.[1]