|Local authority||London Borough of Camden|
|Managed by||London Underground|
|Number of platforms||2|
|Accessible||Yes (Westbound only)|
Warren Street 
|London Underground annual entry and exit|
|10 January 1863||Opened as Gower Street|
|1 November 1909||Renamed Euston Square|
|London transport portal|
Euston Square is a London Underground station at the corner of Euston Road and Gower Street, just north of University College London and within walking distance of Euston railway station. It is between Great Portland Street and King's Cross St. Pancras on the Circle, Hammersmith & City and Metropolitan lines, in Travelcard Zone 1.
A short-lived small circular demonstration railway at the current Euston Square site had the Richard Trevithick designed 1808 Hazeldine and Rastrick single cylinder locomotive Catch Me Who Can pulling a converted road carriage vehicle round the track for a fare of two shillings.
The station was opened as "Gower Street" on 10 January 1863 by the Metropolitan Railway (MR), the world's first underground railway. In 1864, the North Western and Charing Cross Railway received parliamentary authorisation for a line between Euston and Charing Cross connecting to the mainline companies at each end. Following a renaming to the London Central Railway (LCR) in 1870, the company was authorised in 1871 to build a station on the north side of the MR's tunnel. This would have provided an interchange between the two railways; however, the LCR was unable to raise funding for construction of its line and the scheme was abandoned in 1874.
The station was given its present name on 1 November 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 2011, two new lifts linking the westbound platform to the street were opened. On top of these a new modern entrance was opened.
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 main line rail services which depart from Euston. These plans would also be pursued during a rebuilding for High Speed 2.
The station is served by the Metropolitan, Hammersmith & City and Circle lines, between King's Cross St. Pancras to the east and Great Portland Street to the west. All three lines share the same pair of tracks from Baker Street Junction to Aldgate Junction making this section of track one of the most intensely used on the London Underground network.
The typical service in trains per hour (tph) is:
- 6 tph clockwise via Liverpool Street and Tower Hill
- 6 tph anti-clockwise to Hammersmith via Paddington
Hammersmith & City line
The typical service in trains per hour (tph) is:
- 6 tph Eastbound to Barking
- 6 tph Westbound to Hammersmith via Paddington
The Metropolitan Line is the only line to operate express services, though currently this is only during peak times (Westbound 06:30-09:30 / Eastbound 16:00-19:00). Fast services run non-stop between Wembley Park, Harrow-On-The-Hill and Moor Park, while semi-fast services run non-stop between Wembley Park and Harrow-On-The-Hill.
The typical off-peak service in trains per hour (tph) is:
- 12 tph Eastbound to Aldgate
- 2 tph Westbound to Amersham (all stations)
- 2 tph Westbound to Chesham (all stations)
- 8 tph Westbound to Uxbridge (all stations)
Off-peak services to/from Watford terminate at Baker Street
The typical peak time service in trains per hour (tph) is:
- 14 tph Eastbound to Aldgate
- 2 tph Westbound to Amersham (fast in the evening peak only)
- 2 tph Westbound to Chesham (fast in the evening peak only)
- 4 tph Westbound to Watford (semi-fast in the evening peak only)
- 6 tph Westbound to Uxbridge (all stations)
- "Step free Tube Guide" (PDF). Transport for London. May 2020. Archived (PDF) from the original on 7 August 2020.
- "Out-of-station interchanges". Transport for London. Retrieved 16 August 2017.
- "Multi-year station entry-and-exit figures (2007–2017)" (XLSX). London Underground station passenger usage data. Transport for London. January 2018. Retrieved 22 July 2018.
- "Station Usage Data" (CSV). Usage Statistics for London Stations, 2018. Transport for London. 21 August 2019. Retrieved 27 April 2020.
- "Station Usage Data" (XLSX). Usage Statistics for London Stations, 2019. Transport for London. 23 September 2020. Retrieved 9 November 2020.
- Lowe 2014, p. 317.
- Rose 1999.
- Badsey-Ellis 2005, p. 10.
- Badsey-Ellis 2005, p. 13.
- "Euston redevelopment". Always Touch Out. 25 January 2006. Archived from the original on 13 February 2006.
- "High speed rail". Transport Select Committee. House of Commons. 28 June 2011. Archived from the original on 28 September 2011.
- "Circle and Hammersmith & City line WTT" (PDF). Transport for London. Archived from the original (PDF) on 11 November 2016.
- "CULG - Metropolitan Line". www.davros.org. Retrieved 19 March 2017.
- "Metropolitan line WTT" (PDF). Transport for London. Archived from the original (PDF) on 1 July 2016.
- Badsey-Ellis, Antony (2005). London's Lost Tube Schemes. Capital Transport. ISBN 185414-293-3.
- Lowe, James W. (2014) . British Steam Locomotives Builders. Pen & Sword Transport. pp. 245–259. ISBN 978-1-47382-289-4. OCLC 889509628.
- Rose, Douglas (1999) . The London Underground, A Diagrammatic History (7th ed.). Douglas Rose/Capital Transport. ISBN 1-85414-219-4.
|Wikimedia Commons has media related to Euston Square tube station.|
- "London Euston railway station to Euston Square tube station subway link". Always Touch Out.
- "Euston Square Entrance in 1950s". Photo collection. London Transport Museum.
|Preceding station||London Underground||Following station|
|Hammersmith & City line||
Hammersmith branch (1864-1990)