Colin Sinclair (tennis)

Colin Sinclair (born December 19, 1994) is a Northern Mariana Islander tennis player. 
He achieved a career best singles ranking of world No. 419 on 5 August 2019, and a career high doubles ranking of world No. 720 on 12 April 2021. He has reached 7 singles finals on the ITF Futures Tour, with a record of 1 win and 6 losses. Additionally, he has reached 4 doubles finals on the ITF Futures Tour, with a record of 2 wins and 2 losses.
He represents his country in Davis Cup as part of the Pacific Oceania team since 2017 and has a career record of 10–1 (7–1 in singles, 3–0 in doubles) in the competition. He has been coached by Jeff Race, Ian Malpass, and Silviu Tanasoiu.