Brattøra is an artificial island in the city of Trondheim in Sør-Trøndelag county, Norway. The island is located at the mouth of the river Nidelva just north of the city centre (Midtbyen), west of Nyhavna, and south of Trondheimsfjord. There is a canal that divides the mainland from what is now the island of Brattøra.