Colin Sinclair (tennis)

Colin Sinclair
Country (sports) Northern Mariana Islands (2018–)
 United States (2013–2017)
 Australia (–2013)
 Pacific Oceania (Davis Cup tournaments)
ResidenceBrisbane, Australia
Born (1994-12-19) 19 December 1994
Saipan, Northern Mariana Islands
Height6 ft 2 in (1.88 m)
PlaysRight-handed (two-handed backhand)
CollegeCornell University
CoachJeff Race, Ian Malpass, Silviu Tanasoiu
Prize moneyUS$127,379
Singles
Career record1-2
Career titles0
Highest rankingNo. 340 (18 September 2023)
Current rankingNo. 665 (18 November 2024)
Doubles
Career record1-1
Career titles0
Highest rankingNo. 200 (10 April 2023)
Current rankingNo. 374 (9 December 2024)
Davis Cup18–5
Medal record
Men's tennis
Representing  Northern Mariana Islands
Pacific Games
2019 SamoaMen's singles
2019 SamoaMixed doubles
2019 SamoaMen's Team
2019 SamoaMen's doubles
Last updated on: 3 January 2025.

Colin Sinclair (born December 19, 1994) is an American tennis player representing the Northern Mariana Islands.

He achieved a career best singles ranking of world No. 340 on 18 September 2023, and a career high doubles ranking of world No. 200 on 10 April 2023. He has won four doubles titles on the ATP Challenger Tour and eight doubles titles on the ITF Tour. Additionally, he has won three singles ITF titles.

He represents the Northern Mariana Islands in Davis Cup as part of the Pacific Oceania team since 2017 and has a career record of 18–5 (13–3 in singles, 5–2 in doubles) in the competition.