Mamadou Sakho (born 13 February 1990) is a French footballer who plays as a central defender for Premier League club Liverpool and the French national team. He is known for his leadership credentials, his tireless engine, hard-working attitude, and his tackling ability. He has also been praised for his "physical and tactical qualities".

Sakho is also known for the eccentric hairstyles he often displays while playing, and has earned the nickname Kirikou by some supporters as a result. On 13 May 2014, Sakho was named in Didier Deschamps' squad for the 2014 FIFA World Cup.