| Official Name: | Donsö |
| Pushpin Map: | Sweden Västra Götaland#Sweden |
| Subdivision Type: | Country |
| Subdivision Name: | Sweden |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Göteborg Municipality |
| Subdivision Type2: | County |
| Subdivision Name2: | Västra Götaland County |
| Subdivision Type1: | Province |
| Subdivision Name1: | Västergötland |
| Area Footnotes: | [1] |
| Area Total Km2: | 0.97 |
| Population As Of: | 31 December 2010 |
| Population Total: | 1,407 |
| Population Density Km2: | 1451 |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 57.6°N 59°W |
Donsö (pronounced as /sv/)[2] is a small island in the Southern Göteborg Archipelago and a locality situated in Göteborg Municipality, Västra Götaland County, Sweden. It had 1,407 inhabitants in 2010. The local covenant church on Donsö has approximately 500 members.
The following sports clubs are located in Donsö:
Donsö has a long history of shipping, especially in tanker businesses. The following companies are located or owned by people living on Donsö.