| Country: | Åland |
| Previous Election: | 1987 |
| Next Election: | 1995 |
| Election Date: | 20 October 1991 |
| Seats For Election: | All 30 seats in the Parliament of Åland |
| Majority Seats: | 16 |
| Turnout: | 62.37% (1.97 pp) |
| Party1: | Åland Centre |
| Leader1: | Ragnar Erlandsson |
| Last Election1: | 9 |
| Percentage1: | 30.16 |
| Seats1: | 10 |
| Party2: | Liberals for Åland |
| Leader2: | Sune Eriksson |
| Last Election2: | 8 |
| Percentage2: | 22.90 |
| Seats2: | 7 |
| Party3: | Freeminded Co-operation |
| Last Election3: | 5 |
| Percentage3: | 19.81 |
| Seats3: | 6 |
| Party4: | Åland Social Democrats |
| Last Election4: | 4 |
| Percentage4: | 14.55 |
| Seats4: | 4 |
| Party5: | Non-aligned Coalition |
| Last Election5: | 2 |
| Percentage5: | 9.74 |
| Seats5: | 3 |
| Lantråd | |
| Before Election: | Sune Eriksson |
| Before Party: | Liberals for Åland |
| After Election: | Ragnar Erlandsson |
| After Party: | Åland Centre |
Legislative elections were held in Åland on 20 October 1991 to elect members of the Landstinget. The 30 members were elected for a four-year term by proportional representation.
Following the elections, the previous government of the Åland Centre, Liberals for Åland and Freeminded Co-operation parties, was replaced by one formed of the Åland Centre, Freeminded Co-operation and Åland Social Democrats.[1]