John Ross Roach (June 23, 1900 in Port Perry, Ontario – July 9, 1973) was a Canadian ice hockey goaltender in the National Hockey League. Roach was known for his acrobatic style of goaltending. He was a First Team All-Star during the 1932–33 NHL season. He won a Stanley Cup in 1922. His nicknames were "Little Napoleon", "The Housecleaner", and "The Port Perry Cucumber"
He was one of only seven goalies in the NHL to captain his team when he was with the Toronto St. Patricks during the 1924-25 season.