Neil Sinclair (born 23 February 1974), is a Northern Irish former professional boxer who competed from 1995 to 2010.

Sinclair boxed for Ireland as an amateur and won a bronze medal at the World Junior Championships at Montreal in 1992 and also won a gold for Northern Ireland at the 1994 Commonwealth Games in Victoria, British Columbia, Canada.

[1][2] Sinclair turned professional in April 1995, winning his first fight at the Ulster Hall, Belfast, in which he knocked out Marty Duke on a card that included Darren Corbett and the final fight in the career of Damien Denny.

In June 2007, Sinclair announced his retirement[3] although he decided to return to boxing within a couple of months.

In May 2009, Sinclair won the Irish light-middleweight title with a stoppage victory over Henry Coyle at the Odyssey Arena, Belfast.