| Official Name: | Tuna |
| Pushpin Map: | Sweden Kalmar#Sweden |
| Subdivision Type: | Country |
| Subdivision Name: | Sweden |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Vimmerby Municipality |
| Subdivision Type2: | County |
| Subdivision Name2: | Kalmar County |
| Subdivision Type1: | Province |
| Subdivision Name1: | Småland |
| Area Footnotes: | [1] |
| Area Total Km2: | 0.29 |
| Population As Of: | 31 December 2010 |
| Population Total: | 227 |
| Population Density Km2: | 793 |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 57.5833°N 22°W |
| Blank Name: | Climate |
| Blank Info: | Cfb |
Tuna is a locality situated in Vimmerby Municipality, Kalmar County, Sweden with 227 inhabitants in 2010.
Tuna was the birthplace of Lorenzo Hammarsköld (1785–1827), a Swedish critic and literary historian. He also published poetry.[2]