The O2 Arena

The O2 Arena
The O2 entertainment complex, which houses the arena
The O2 Arena
Location within Royal Borough of Greenwich
Full nameThe O2 Arena
Former namesNorth Greenwich Arena (during the 2012 Summer Olympics and Paralympics)
LocationGreenwich, London, SE10
Coordinates51°30′10″N 0°00′12″E / 51.5029°N 0.0032°E / 51.5029; 0.0032
Public transit North Greenwich
OwnerHomes England
OperatorAnsco Arena Limited (AEG Live) Europe
Capacity20,000
SurfaceVersatile
Construction
Built2003–2007
Opened24 June 2007
ArchitectHOK Sport Now POPULOUS
Structural engineerBuro Happold
Services engineerM-E Engineers Ltd.
General contractorSir Robert McAlpine
Tenants
Website
theo2.co.uk

The O2 Arena, commonly known as The O2, is a multi-purpose indoor arena in the centre of The O2 entertainment district on the Greenwich Peninsula in southeast London, England. It opened in its present form in 2007. It has the third-highest seating capacity of any indoor venue in the United Kingdom, behind Co-op Live and Manchester Arena, and in 2008 was the world's busiest music arena. As of 2022, it is the ninth-largest building in the world by volume with a diameter of 365 metres (399 yards) and a height of 52 metres (57 yards).

The arena was built under the Millennium Dome (renamed The O2), a large dome-shaped building built to house an exhibition celebrating the turn of the third millennium; as the structure still stands over the arena, The Dome remains a name in common usage for the venue. The arena, as well as the overall complex, is named after its primary sponsor, the telecommunications company O2, a subsidiary of Virgin Media O2.

The nearest tube station to the arena is North Greenwich on the Jubilee line.