| Takumi Onuma | |
| Native Name: | 小沼巧 |
| Native Name Lang: | ja |
| Term Start: | 2019 |
| Constituency: | Ibaraki Prefecture |
| Birth Date: | 21 December 1985 |
| Party: | Constitutional Democratic Party of Japan |
| Alma Mater: | Waseda University |
Takumi Onuma is a Japanese politician who is a member of the House of Councillors of Japan.
He was elected in 2019.[1]