| Sanna | |
| Pushpin Map: | Nordland#Norway |
| Pushpin Label: | Sanna |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location of the island |
| Location: | Nordland, Norway |
| Coordinates: | 66.5057°N 12.0469°W |
| Area Km2: | 3 |
| Elevation M: | 338 |
| Highest Mount: | Trænstaven |
| Country: | Norway |
| Country Admin Divisions Title: | County |
| Country Admin Divisions: | Nordland |
| Country Admin Divisions Title 1: | Municipality |
| Country Admin Divisions 1: | Træna Municipality |
| Population: | 3 |
| Population As Of: | 2018 |
Sanna (sometimes Sanda) is an island and village area in the municipality of Træna in Nordland county, Norway. The 3km2 island is the largest island in Træna municipality. The island is located less than west of the main island of Husøya. The island has five characteristic mountaintops, the highest is the 338m (1,109feet) tall Trænstaven. The Traena Music Festival is held on this island each year.[1] The island has 3 residents (in 2018).