Reginald Sinclair (born March 6, 1925 in Lachine, Quebec) is a retired Canadian ice hockey forward.
Sinclair started his National Hockey League career with the New York Rangers. He would also play with the Detroit Red Wings. His career would last from 1950 to 1953. He played in the 1951 NHL All-Star Game and the 1952 NHL All-Star Game. He currently resides in Rothesay, New Brunswick