Neil Sinclair (born 23 February 1974), is a Northern Irish former professional boxer who competed from 1995 to 2010. He challenged once for the WBO welterweight title in 2010. At regional level, he held the British welterweight title from 2001 to 2003 and challenged once for the EBU European Union title in 2008. As an amateur, he won a bronze medal representing Ireland at the 1992 Junior World Championships and gold while representing Northern Ireland at the 1994 Commonwealth Games.