Ömer Onan (born February 4, 1978) is a Turkish former professional basketball player.

During his professional playing career, Onan won the European-wide third-tier level league, the FIBA Korać Cup championship in 1996.

Domestically in his native Turkey, he also won the Turkish Super League championship 11 times (1996, 1997, 2002, 2003, 2004, 2006, 2007, 2008, 2010, 2011, and 2014).

He was a part of the Turkish teams that won the silver medal at the EuroBasket 2001 and the 2010 FIBA World Championship.

This biographical article relating to a Turkish basketball figure is a stub.