| Akiko Oishi | |
| Native Name Lang: | ja |
| Office: | Member of the House of Representatives |
| Term Start: | 25 November 2021 |
| Birth Date: | 27 May 1977 |
| Birth Place: | Osaka, Japan |
| Party: | Reiwa Shinsengumi |
| Education: | Master of Engineering |
| Alma Mater: | Osaka University |
Akiko Oishi (born May 27, 1977) is a Japanese politician. She is a member of the House of Representatives as a member of Reiwa Shinsengumi. She is a co-representative and policy council chairperson of the party.
Oishi graduated from Osaka City Shiokusa Elementary School, Osaka Prefectural Kitano High School, and Osaka University Faculty of Engineering. She completed a master's degree in environmental engineering at Osaka University Graduate School of Engineering. In 2002, she joined the Osaka Prefectural Office.[1]
On 21 February 2020, Taro Yamamoto, the representative of the Reiwa Shinsengumi, announced that he would field Oishi in Osaka's 5th district for the next House of Representatives election. She finished third in the single-seat constituency behind Toru Kunishige of the New Komeito Party and Takeshi Miyamoto of the Japanese Communist Party, but in the proportional Kinki bloc, where there were multiple candidates, she ranked lowest out of 28 seats, at 28th place, and Reiwa Shinsengumi won one seat. However, Oishi, who had the highest sekihairitsu among the five people ranked first on the list, secured her seat and was elected for the first time. She is a member of the Budget Committee of the House of Representatives.
On December 18, 2022, she ran for the Reiwa Shinsengumi representative election in a joint campaign with Mari Kushibuchi, but lost to Taro Yamamoto. The following day, Yamamoto nominated Oishi and Kushibuchi as party co-representatives.[2]