1955 in sports
See also: 1954 in sports, other events of 1955, 1956 in sports and the list of 'years in sports'.
- NASCAR Championship - Tim Flock
- AAA Racing:
- Bob Sweikert won the Indianapolis 500
- Bob Sweikert won the season championship
- Formula One Championship - Juan Manuel Fangio of Argentina
- 24 hours of Le Mans: the team of Mike Hawthorn / Ivor Bueb won, driving a Jaguar D-type
- Rally racing:
- the team of Per Malling / Gunnar Fadum won the Monte Carlo Rally driving a Sunbeam Talbot
- Drag racing - The NHRA staged its first "Nationals" in Great Bend, Kansas. Calvin Rice won the inaugural "Top Fuel" championship.
- World Series: Brooklyn Dodgers win 4 games to 3 over the New York Yankees. The Series MVP is pitcher Johnny Podres, Brooklyn.
- NCAA Men's Basketball Championship:
- San Francisco wins 76-73 over La Salle
- NBA Finals:
- Syracuse Nationals win 4-3 over the Fort Wayne Pistons
- September 21 in New York City, Rocky Marciano knocks out the Light-heavyweight champion Archie Moore in the 9th round to retain his World Heavyweight Championship.
- Giro d'Italia won by Fiorenzo Magni of Italy
- Tour de France - Louison Bobet of France
- World Cycling Championship: Stan Ockers of Belgium
- World Figure Skating Championships:
- Men's champion: Hayes Alan Jenkins, United States
- Women's champion: Tenley Albright, United States
- Pairs champions: Frances Dafoe & Norris Bowden, Canada
Football (Soccer)
- England - FA Cup: Newcastle United won 3-1 over Manchester City
- NFL Championship: Cleveland Browns won 38-14 over the Los Angeles Rams
- Grey Cup: Edmonton Eskimos won 34-19 over the Montreal Alouettes
- Grand Slam of golf results:
- PGA tour's leading money winner for the year: Julius Boros - $63,122
- Ryder Cup the United States team wins 8-4 over the British team in world golf.
- The LPGA launches the new LPGA Championship annual tournament.
- US Women's Open - Fay Crocker
- LPGA Championship - Beverly Hanson
- Patty Berg: leading money winner on the LPGA tour, earning $16,492.
- Australia - Melbourne Cup - Toparoa
- Canada - Queen's Plate - Ace Marine
- France - Prix de l'Arc de Triomphe - Ribot
- Ireland - Irish Derby Stakes - Panaslipper
- August 31 - In one of the most famous match races in thoroughbred racing history, Nashua beat Swaps at Washington Park racetrack. It was Swaps only loss in nine starts as a three-year old. Nashua's owner-breeder, William Woodward, Sr., dreamed of owning an Epsom Derby winner, and he planned to send Nashua to England to train toward that goal. However, Woodward was shot to death by his wife before he could proceed.
- The first Cane Pace is held at Yonkers Raceway.
- Little Brown Jug for pacers won by Quick Chief
- Cane Pace won by Quick Chief
- The United States Trotting Triple Crown races are established. Scott Frost will win the first ever crown.
- Australian Inter Dominion Harness Racing Championship:
- Pacers: Tactician
- Trotters: Battle Cry
- Art Ross Memorial Trophy as the NHL's leading scorer during the regular season: Bernie "Boom-Boom" Geoffrion, Montreal Canadiens
- Hart Memorial Trophy for the NHL's Most Valuable Player: Ted Kennedy, Toronto Maple Leafs
- Stanley Cup: - Detroit Red Wings win 4 games to 3 over the Montreal Canadiens
- World Hockey Championship
- Men's champion: Canada's Penticton Vees win 5-0 over the USSR
- Grand Slam in tennis men's results:
- Grand Slam in tennis women's results:
- Davis Cup: Australia wins 5-0 over the United States in world tennis
- Fred Davis retained the World Professional Snooker Championship
Births
- February 10 - Greg Norman, golfer
- February 24 - Alain Prost, Formula One driver
- March 16 - Jiro Watanabe, Japanese boxing world champion
- June 21 - Michel Platini, French soccer star
Deaths
- May 10 - Tommy Burns, World Heavyweight Boxing Champion
- May 26 - Alberto Ascari, F1 race car champion
- September 4 - Gus Weyhing, Major League Baseball pitcher (1887-1901)
- October 27 - Clark Griffith, Major League Baseball pitcher (1891-1914)
- November 4 - Cy Young, American baseball player
- December 6 - Honus Wagner, Major League Baseball player (1897-1917)