| Yūko Mori | |
| Office: | Member of the House of Councillors |
| Term Start: | 26 July 2016 |
| Term End: | 25 July 2022 |
| Constituency: | Niigata |
| Predecessor: | Yaichi Nakahara |
| Successor: | Kazuhiro Kobayashi |
| Term Start1: | 29 July 2001 |
| Term End1: | 28 July 2013 |
| Successor1: | Naoki Kazama |
| Constituency1: | Niigata |
| Birth Date: | 1956 4, df=yes |
| Birth Place: | Niigata, Niigata, Japan |
| Alma Mater: | Niigata University |
| Party: | DPP |
| Otherparty: | Liberal (2016-2019) Independent (2016) PLP (2012–2016) TPJ (2012, split) PLF (2012, merger) DPJ (2003–2012) LP (1999–2003, merger) |
| Nationality: | Japanese |
| Website: | Official website |
is a Japanese politician and a former member of the House of Councillors of Japan in the Diet (national legislature). She was previously with the Democratic Party of Japan and briefly belonged to the Tomorrow Party of Japan founded by Yukiko Kada, of which she was the deputy leader.[1] [2] A native of Niigata and graduate of Niigata University, she was elected to the House of Councillors for the first time in 2001 after serving in the town assembly of Yokogoshi, Niigata between 1999 and 2001.