| Yumiko Himei | |
| Native Name: | 姫井由美子 |
| Native Name Lang: | Japanese |
| Birth Date: | 14 February 1959 |
| Nationality: | Japanese |
| Party: | Liberal Party (Japan, 2016) |
[1] is a Japanese politician of the Democratic Party of Japan, a member of the House of Councillors in the Diet (national legislature). A native of Okayama, she graduated from Okayama University with a master's degree. She was elected to the House of Councillors for the first time in 2007 after serving in the assembly of Okayama Prefecture for two terms since 1999.
She was due to join a new political party, "Kaikaku Club", in 2008, but on August 28, 2008, she withdrew her membership in the new party and reaffirmed her loyalty to the Democratic Party of Japan.[2]