John Duncan "Long John" Henderson - Born March 25, 1933 in Toronto, Ontario is a Canadian retired ice Hockey goaltender.
- World Ice Hockey Champion 1958 with Whitby Dunlops.
- J. Ross Robertson Cup (senior) Champion 1957 and 1959 with Whitby Dunlops.
- Allan Cup Champion 1957 and 1959 with Whitby Dunlops.
- Lester Patrick Cup Champion 1966 with Victoria Maple Leafs.
- Calder Cup Champion 1969 with Hershey Bears.
Henderson made his NHL debut on November 17, 1954 with the Boston Bruins vs the New York Rangers in a 2-2 tie at Madison Square Garden.
1st NHL win on November 18, 1954 vs Chicago Black Hawks 5-1 at Chicago Stadium.
1st NHL Shutout on November 20, 1954 vs Toronto Maple Leafs 1-0 at Maple Leaf Gardens.