Euston Square is a London Underground station at the corner of Euston Road and Gower Street, just north of University College London within walking distance of Euston railway station on the Circle, Hammersmith & City and Metropolitan lines, between Great Portland Street and King's Cross St. Pancras in Travelcard Zone 1. It should not to be confused with the nearby Euston tube station for the Northern and Victoria lines).
The station opened in 1863 as "Gower Street", changing to its present name in 1909. In late 2006 the new entrance on the south side of Euston Road opened in a corner of the new headquarters of the Wellcome Trust replacing the old entrance. There is also a subway entrance on the north side of Euston Road.
In December 2005 Network Rail announced plans to create a subway link between the station and Euston station as part of the re-development of Euston station. This will create a direct link for users of heavy rail services which terminate at Euston.
Both Warren Street and Euston tube stations are within close walking distance.