| Keizō Hamada | |
| Native Name Lang: | ja |
| Office: | Governor of Kagawa Prefecture |
| Term Start: | 5 September 2010 |
| Term End: | 4 September 2022 |
| Predecessor: | Takeki Manabe |
| Successor: | Toyohito Ikeda |
| Birth Date: | 10 January 1952 |
| Birth Place: | Kan'onji, Kagawa, Japan |
| Party: | Liberal Democratic Party of Japan |
| Alma Mater: | University of Tokyo |
is a former Japanese politician and finance bureaucrat and a former governor of Kagawa Prefecture in the Shikoku region of Japan. He held office for three terms, from September 2010 to September 2022.[1] [2]