| Løvøya | |
| Pushpin Map: | Norway Telemark#Norway |
| Pushpin Label: | Løvøya |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location of the island |
| Location: | Porsgrunn, Norway |
| Coordinates: | 59.0609°N 9.7406°W |
| Area Km2: | 0.25 |
| Length Km: | 1.3 |
| Width M: | 240 |
| Country: | Norway |
| Country Admin Divisions Title: | County |
| Country Admin Divisions: | Telemark |
| Country Admin Divisions Title 1: | Municipality |
| Country Admin Divisions 1: | Porsgrunn Municipality |
Løvøya is an island in Porsgrunn Municipality in Telemark county, Norway. The 0.25km2 island is located in the Ormerfjorden, just east of the island of Sandøya, and about east of the town of Brevik.
In 1828, Morten Thrane Esmark found a black mineral on the island. He sent it to Swedish chemist Jöns Jakob Berzelius for examination for further analysis. Berzelius determined that it contained a new element, which he named thorium after Thor, the Norse god of thunder.[1] [2] [3]