1925 in sports describes the year's events in world sport.
|Years in sports:||1922 1923 1924 1925 1926 1927 1928|
|Centuries:||19th century · 20th century · 21st century|
|Decades:||1890s 1900s 1910s 1920s 1930s 1940s 1950s|
|Years:||1922 1923 1924 1925 1926 1927 1928|
- NFL championship – Chicago Cardinals (11–2–1)
- Five new teams join the NFL: New York Giants, Detroit Panthers, Providence Steam Roller, a new Canton Bulldogs team and the Pottsville Maroons.
- Rose Bowl (1924 season):
- Dartmouth Big Green – college football national championship shared with Alabama Crimson Tide
- 3 October – Texas Technological College (now Texas Tech) plays its inaugural intercollegiate football game.
- The IFAB reforms the offside law, reducing the number of opposing players required to be in front of the attacker for him to be onside from three to two.
- The Football League – Huddersfield Town 58 points, West Bromwich Albion 56, Bolton Wanderers 55, Liverpool 50, Bury 49, Newcastle United 48
- FA Cup final – Sheffield United 1–0 Cardiff City at Empire Stadium, Wembley, London
- Geelong wins the 29th VFL Premiership: Geelong 10.19 (79) d Collingwood 9.15 (69) at Melbourne Cricket Ground (MCG)
- 7–15 October — Pittsburgh Pirates (NL) defeats Washington Senators (AL) to win the 1925 World Series by 4 games to 3. The Pirates are the first team to win a Series in a comeback down three games to one.
- The American Basketball League is formed as the first major league of professional basketball.
- 15 January — Benny Leonard, arguably the greatest-ever lightweight champion, retires from boxing to leave the World Lightweight Championship temporarily vacant
- 2 July — World Middleweight Champion Harry Greb outpoints World Welterweight Champion Mickey Walker over 15 rounds in one of the all-time great boxing matches at New York's Polo Grounds.
- 14 July — death of current World Flyweight Champion Pancho Villa from blood poisoning after a dental operation goes wrong.
Lineal world champions
- World Heavyweight Championship – Jack Dempsey
- World Light Heavyweight Championship – Mike McTigue → Paul Berlenbach
- World Middleweight Championship – Harry Greb
- World Welterweight Championship – Mickey Walker
- World Lightweight Championship – Benny Leonard → vacant → Jimmy Goodrich → Rocky Kansas
- World Featherweight Championship – vacant → Louis "Kid" Kaplan
- World Bantamweight Championship – Eddie "Cannonball" Martin → Charley Phil Rosenberg
- World Flyweight Championship – Pancho Villa → vacant
- Marylebone Cricket Club organises an England tour of Australia in the 1924–25 season. Australia retains The Ashes by winning the five-match Test series 4–1.
- County Championship – Yorkshire
- Minor Counties Championship – Buckinghamshire
- Most runs – Jack Hobbs 3024 @ 70.32 (HS 266*)
- Most wickets – Maurice Tate 228 @ 14.97 (BB 8–91)
- Wisden Cricketer of the Year – Jack Hobbs
- Sheffield Shield – Victoria
- Most runs – Herbert Sutcliffe 1250 @ 69.44 (HS 188)
- Most wickets – Maurice Tate 77 @ 19.01 (BB 7–74)
- Currie Cup – not contested
Tour de France
World Figure Skating Championships
- Cheltenham Gold Cup – Ballinode
- Grand National – Double Chance
- 1,000 Guineas Stakes – Saucy Sue
- 2,000 Guineas Stakes – Manna
- The Derby – Manna
- The Oaks – Saucy Sue
- St. Leger Stakes – Solario
- Melbourne Cup – Windbag
- Queen's Plate – Fairbank
- Prix de l'Arc de Triomphe – Priori
- 21–30 March — Victoria Cougars defeats Montreal Canadiens in the 1925 Stanley Cup Finals. The Cougars are the last non-NHL team to win the Cup.
- The first-place Hamilton Tigers of the NHL go on strike for an increase in pay. The team is suspended and the players sold to become the New York Americans.
- 2 December — the expansion New York Americans and Pittsburgh Pirates of the NHL play their first-ever game against each other at Pittsburgh. The Americans defeat the Pirates 2–1 in overtime.
- 15 December — the first NHL game is played at Madison Square Garden between the New York Americans and the Montreal Canadiens. The Canadiens win the game 3-1 and are awarded the Prince of Wales Trophy.
Far Eastern Championship Games
FIS Nordic World Ski Championships
The Boat Race
- Championship – Hull Kingston Rovers
- Challenge Cup final – Oldham 16–3 Hull Kingston Rovers at Headingley Rugby Stadium, Leeds
- Lancashire League Championship – Swinton
- Yorkshire League Championship – Hull Kingston Rovers
- Lancashire County Cup – Oldham 10–0 St Helens Recs
- Yorkshire County Cup – Wakefield Trinity 9–8 Batley
Five Nations Championship
Speed Skating World Championships
- Australian Men's Singles Championship – James Anderson (Australia) defeats Gerald Patterson (Australia) 11–9 2–6 6–2 6–3
- Australian Women's Singles Championship – Daphne Akhurst Cozens (Australia) defeats Esna Boyd Robertson (Australia) 1–6 8–6 6–4
- Wimbledon Men's Singles Championship – René Lacoste (France) defeats Jean Borotra (France) 6–3 6–3 4–6 8–6
- Wimbledon Women's Singles Championship – Suzanne Lenglen (France) defeats Joan Fry Lakeman (Great Britain) 6–2 6–0
- French Men's Singles Championship – René Lacoste (France) defeats Jean Borotra (France) 7–5 6–1 6–4
- French Women's Singles Championship – Suzanne Lenglen (France) defeats Kitty McKane Godfree (Great Britain) 6–1 6–2
- American Men's Singles Championship – Bill Tilden (USA) defeats Bill Johnston (USA) 4–6 11–9 6–3 4–6 6–3
- American Women's Singles Championship – Helen Wills Moody (USA) defeats Kitty McKane Godfree (Great Britain) 3–6 6–0 6–2
- Cyber Boxing Zone. Retrieved on 21 November 2009.
- Harry Greb site. Retrieved on 21 November 2009.
- Cyber Boxing Zone
- "Cycling-Tour de France list of winners". Eurosport UK. 26 August 2020. Retrieved 18 February 2021.
- Porter, David L. (5 August 2013). Their Greatest Victory: 24 Athletes Who Overcame Disease, Disability and Injury. McFarland. p. 111. ISBN 978-0-7864-7305-2.