| Rajkumar Singh | |
| Office: | Member of Bihar Legislative Assembly |
| Term Start: | 10 November 2020 |
| Term End: | Incumbent |
| Constituency: | Matihani |
| Predecessor: | Narendra Kumar Singh |
| Successor: | Incumbent |
| Party: | Janata Dal (United) |
| Otherparty: | Lok Janshakti Party |
| Residence: | Kapasiya, Begusarai, Bihar |
| Alma Mater: | Ramjas College |
| Profession: | Businessman |
| Education: | Graduate |
Rajkumar Singh is an Indian politician from Bihar and a Member of the Bihar Legislative Assembly. Singh won the Matihani Assembly constituency on Lok Janshakti Party ticket in the 2020 Bihar Legislative Assembly election. He belongs to Bhumihar Brahmin caste,[1] but after few months he switched to Janata Dal (United).[2]