Trianglen station is Copenhagen Metro station located at Trianglen (literally 'The Triangle'), at the corner of Blegdamsvej and Øster Allé, in the Østerbro district of Copenhagen, Denmark. The station is on the City Circle Line (M3), between Østerport and Poul Henningsens Plads, and is in Zone 1. The station is situated in front one of the entrances to Fælled Park and approximately 400 metres (1,300 ft) from the Parken Stadium.

The station is underground. It was opened on 29 September 2019 together with 16 other stations of the line.

Preceding station	Copenhagen Metro			Following station
Østerport clockwise		M3		Poul Henningsens Plads counter-clockwise