| Country: | San Marino |
| Flag Year: | 1862 |
| Type: | parliamentary |
| Previous Election: | 1951 |
| Next Election: | 1959 |
| Election Date: | 14 August 1955 |
| Seats For Election: | All 60 seats in the Grand and General Council |
| Majority Seats: | 31 |
| Turnout: | 70.07% (7.52pp) |
| Noleader: | yes |
| Party1: | PDCS |
| Last Election1: | 26 |
| Seats1: | 23 |
| Percentage1: | 38.25 |
| Party2: | PCS |
| Last Election2: | 18 |
| Seats2: | 19 |
| Percentage2: | 31.57 |
| Party3: | PSS |
| Last Election3: | 13 |
| Seats3: | 16 |
| Percentage3: | 25.51 |
| Party4: | PSDS |
| Last Election4: | 3 |
| Seats4: | 2 |
| Percentage4: | 4.67 |
General elections were held in San Marino on 14 August 1955.[1] Although the Sammarinese Christian Democratic Party remained the largest party, winning 23 of the 60 seats in the Grand and General Council,[2] the alliance of the Sammarinese Communist Party and Sammarinese Socialist Party retained its majority.
Voters had to be citizens of San Marino, male and at least 24 years old.