| Mariko Suga | |
| Office: | Spouse of the Prime Minister of Japan |
| Term Label: | In role |
| Term Start: | 16 September 2020 |
| Spouse: | Yoshihide Suga |
| Children: | 3 |
| Birth Date: | 28 November 1953 |
| Birth Place: | Shimizu, Shizuoka, Japan |
| Predecessor: | Akie Abe |
| Primeminister: | Yoshihide Suga |
| Native Name Lang: | ja |
| Termend: | 4 October 2021 |
| Successor: | Yuko Kishida |
is the wife of former Prime Minister Yoshihide Suga.[1] She is the sister of one of her husband's co-workers.