El Hadji Baye Oumar Niasse (born 18 April 1990) is a Senegalese professional footballer who plays as a striker for Premier League club Everton and the Senegal national team.
Niasse has played top-flight football in Senegal, Norway, Turkey, Russia and England.
He won the 2011 Senegal Premier League with Ouakam and scored in Lokomotiv Moscow's win in the 2015 Russian Cup Final.
He signed for Everton for a £13.5 million transfer fee in 2016.
Niasse made his full international debut for Senegal in 2013.