| Election Name: | 1991 Saga gubernatorial election |
| Country: | Saga |
| Ongoing: | no |
| Type: | presidential |
| Previous Election: | Saga gubernatorial election, 1987 |
| Previous Year: | 1987 |
| Election Date: | 7 April 1991 |
| Next Election: | Saga gubernatorial election, 1995 |
| Next Year: | 1995 |
| Time Zone: | +9 |
| Nominee1: | Isamu Imoto |
| Party1: | Independent (politician) |
| Popular Vote1: | 319,927 |
| Nominee2: | Yoshiyuki Matsuo |
| Party2: | Japan Communist Party |
| Popular Vote2: | 54,165 |
| Nominee3: | Setsuo Yamaguchi |
| Party3: | Independent (politician) |
| Popular Vote3: | 39,587 |
| Governor | |
| Before Election: | Kumao Katsuki |
| Before Party: | Independent (politician) |
| After Election: | Isamu Imoto |
| After Party: | Independent (politician) |
A gubernatorial election was held on 7 April 1991 to elect the Governor of Saga Prefecture.