Riyad Karim Mahrez (Arabic: رياض كريم محرز‎; born 21 February 1991) is a professional footballer who plays as a winger for Premier League club Manchester City and captains the Algerian national team.

Mahrez began his career as a youth player for French club AAS Sarcelles. He turned professional in 2009 with Quimper, where he played for only one season before moving to Le Havre, spending a total of three years with them, initially playing for their reserve team and then becoming a first-team regular. In January 2014, Mahrez signed for English side Leicester City, helping them win the Championship and promotion to the Premier League at the end of his first season. In the 2015–16 season he was the Algerian Footballer of the Year, the PFA Players' Player of the Year, and was a member of the Premier League PFA Team of the Year as he helped Leicester City win the Premier League. He signed for Manchester City in 2018, winning the Premier League, FA Cup and EFL Cup in his first season.

Born in France, Mahrez made his international debut for Algeria in 2014 and represented them at the 2014 FIFA World Cup and at the 2015, 2017 and 2019 Africa Cup of Nations, winning the African Cup of Nations in 2019. In 2016 he was named CAF's African Footballer of the Year.