Rotterdam Ahoy is a multi-purpose complex with a convention centre and an indoor arena located in Rotterdam, Netherlands. Opened originally in 1950, the current complex consists of three main venues: a fairs and events hall, a congress and conference centre, and the main venue the Ahoy Arena. The latter opened on 15 January 1971 and is the largest multi-purpose venue in the Netherlands, with a capacity of 16,426 as of May 2019.