Colin Sinclair may refer to:
Colin Sinclair (footballer) (born 1947), Scottish former footballer Colin Sinclair (boxer) (1890–1970), Australian boxer Colin Sinclair (politician) (1876–1956), Australian politician Colin Sinclair (tennis) (born 1994), Northern Mariana Islands tennis player Colin Sinclair (minister), Church of Scotland minister and Moderator of the General Assembly of the Church of Scotland (2019-2020) Col Sinclair (1896–1959), Australian rules footballer