| Rottøya | |
| Pushpin Map: | Møre og Romsdal#Norway |
| Pushpin Label: | Rottøya |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location of the island |
| Location: | Møre og Romsdal, Norway |
| Coordinates: | 63.2449°N 8.509°W |
| Area Km2: | 4 |
| Length Km: | 3.7 |
| Width Km: | 1.6 |
| Coastline Km: | 10 |
| Elevation M: | 225 |
| Highest Mount: | Rottøyhaugen |
| Country: | Norway |
| Country Admin Divisions Title: | County |
| Country Admin Divisions: | Møre og Romsdal |
| Country Admin Divisions Title 1: | Municipality |
| Country Admin Divisions 1: | Aure Municipality |
Rottøya is an island in the municipality of Aure in Møre og Romsdal county, Norway.[1] The island lies between the mainland and the large island of Ertvågsøya. The small island of Ruøya lies just to the north of Rottøya.
The Mjosund Bridge crosses the Mjosundet strait, connecting Rottøya to the island of Ertvågsøya to the west. The Smalsund Bridge crosses the Smalsundet strait, connecting Rottøya to the island of Ruøya to the north. The larger Aursundet strait is located to the east of the island.