San Mamesis an all seater football stadium in Bilbao, Basque Country, Spain.
Inaugurated on 16 September 2013, the stadium replaced the old San Mames as the home of Atheltic Bilbao. With a capacity of 53,289 seats, San Mamés is the 8th-largest stadium in Spain and the largest in the Basque Country. The first match in the stadium under its full capacity was a Champions League Playoff tie against Napoli on 27 August 2014, attended by 49,017. Athletic won 3–1 to progress to the group stage of the competition.The stadium was chosen as one of the venues of the UEFA Euro 2020 held in cities across Europe.