Yann Sommer (born 17 December 1988) is a Swiss footballer who plays as a goalkeeper for Borussia Mönchengladbach. Sommer completed his apprenticeship at Basel, where he won the Swiss Super League on four consecutive occasions before transferring to Mönchengladbach in 2014. He also won the Swiss Challenge League and two Liechtenstein Football Cups while on loan to Vaduz. Sommer made his debut for the Switzerland national team in 2012. He represented the nation at the 2014 FIFA World Cup, UEFA Euro 2016 and the 2018 FIFA World Cup.