Bjørnsund is an abandoned fishing village and an archipelago in Hustadvika municipality in Romsdal in Møre og Romsdal. The archipelago is located just west of Bud at the far end of the Romsdal Peninsula in the same municipality.
The fishing village was depopulated following a decision by the Fræna municipal council in 1968. The introduction of a nine-year primary school with subsequent school transport to the mainland for secondary school students, and the need for investments in infrastructure such as road and harbor lighting, running water, public quay and harbor cleaning were among the factors behind the decision. The last inhabitants moved in 1971.
In the years after 1945, between 500 and 600 people lived on Bjørnsund. Today, Bjørnsund is a holiday and camp school site. At the highest point on Nordre Bjørnsund is a polar bear sculpture in memory of those who lost their lives at sea between 1850 and 1950.