| Chūichi Date | |
| Native Name Lang: | ja |
| Office: | President of the House of Councillors |
| Term Start: | 1 August 2016 |
| Term End: | 28 July 2019 |
| Deputy: | Akira Gunji |
| Predecessor: | Masaaki Yamazaki |
| Successor: | Akiko Santō |
| Office1: | Member of the House of Councillors |
| Term Start1: | 29 July 2001 |
| Term End1: | 28 July 2019 |
| Predecessor1: | Hisamitsu Sugano |
| Successor1: | Harumi Takahashi |
| Constituency1: | Hokkaido |
| Office2: | Member of the Hokkaido Prefectural Assembly |
| Term Start2: | 1991 |
| Term End2: | 2001 |
| Constituency2: | Atsubetsu-ku, Sapporo |
| Term Start3: | 1983 |
| Term End3: | 1987 |
| Constituency3: | Ashibetsu |
| Birth Date: | 20 January 1939 |
| Birth Place: | Ashibetsu, Hokkaido, Japan |
| Party: | Liberal Democratic |
| Alma Mater: | Sapporo Medical University |
is a Japanese retired politician of the Liberal Democratic Party who served three terms in the House of Councillors in the Diet (national legislature) and also served as the LDP's National Diet Committee Chairman.
A native of Ashibetsu, Hokkaido and high school graduate, he was elected to the House of Councillors for the first time in 2001 after serving in the Hokkaido Prefectural Assembly. He was a former President of the House of Councillors.
After the Assassination of Shinzo Abe in July 2022 he admitted that he had asked Abe for votes from the Unification Church (UC) in the 2016 Upper House election. According to Hokkaido Television Broadcasting reporting, Date has participated in at least three events sponsored by the UC and its front organisations, including an online event in August 2020, where he stated, "I believe that the spirit of coexistence, co-prosperity, and shared meaning, which leaders Moon and Han are preaching, is more desperately needed today than ever." Date testified that when he supported Yoshifumi Miyajima of the LDP, who ran for the House of Councillors in the 2016 national proportional election, he asked Shinzo Abe to provide votes supplied from the UC. He said that Abe agreed and Miyajima was elected for the first time, but that Abe refused to allow him to run for the Upper House this time, and Miyajima had to withdraw from the race.[1] The UC support was instead distributed to Inoue Yoshiyuki.[2] [3]