| Country: | San Marino |
| Flag Year: | 1862 |
| Type: | parliamentary |
| Previous Election: | 1983 |
| Next Election: | 1993 |
| Election Date: | 29 May 1988 |
| Seats For Election: | All 60 seats in the Grand and General Council |
| Majority Seats: | 31 |
| Turnout: | 81.12% (1.40pp) |
| Noleader: | yes |
| Party1: | Sammarinese Christian Democratic Party |
| Last Election1: | 26 |
| Seats1: | 27 |
| Percentage1: | 44.13 |
| Party2: | Sammarinese Communist Party |
| Last Election2: | 15 |
| Seats2: | 18 |
| Percentage2: | 28.69 |
| Party3: | Unitary Socialist Party–Socialist Agreement |
| Last Election3: | 8 |
| Seats3: | 8 |
| Percentage3: | 13.64 |
| Party4: | Sammarinese Socialist Party |
| Last Election4: | 9 |
| Seats4: | 7 |
| Percentage4: | 11.11 |
General elections were held in San Marino on 29 May 1988.[1] The Sammarinese Christian Democratic Party remained the largest party, winning 27 of the 60 seats in the Grand and General Council,[2] and continued their coalition with the Sammarinese Communist Party.
Voters had to be citizens of San Marino and at least 18 years old.