The Bothnian Bay or Bay of Bothnia (Finnish: Perämeri, Swedish: Bottenviken) is the most northern part of the Gulf of Bothnia, the northern part of the Baltic Sea. Its northernmost point is situated in Töre. The bay is bounded by Finland to the east and Sweden to the west.
Major ports on Finnish side are the ports in Oulu, Kemi and Raahe.
The bay has the highest rate of rising of land by post-glacial rebound in the Baltic Sea.
