Belsize Park tube station is a London Underground station in north London.

The station is on the Edgware branch of the Northern Line, between Chalk Farm and Hampstead stations, and in Travelcard Zone 2.

Major points of interest in the area include the Royal Free Hampstead hospital (often called The Royal Free). Belsize Park is also one of eight London Underground stations which has a deep-level air-raid shelter underneath it.