Jebb Sinclair (born 4 August 1986) is a Canadian rugby union player who played most recently for London Irish.

Jebb made his debut for the Canadian national rugby team against Portugal while on Canada's 2008 tour of Europe.

Sinclair has previously played with the Fredericton Loyalists, Castaway Wanderers RFC, RGC 1404 in North Wales, and The Rock of the Canadian Rugby Championship.

[3] In May 2012, he joined Super Rugby team the Stormers on a short-term loan deal.

[4] At the end of the 2012 Super Rugby season, it was announced he would stay on in South Africa to play for Western Province in the 2012 Currie Cup Premier Division.