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1989 in sports describes the year's events in world sport.
- Super Bowl XXIII – the San Francisco 49ers (NFC) won 20–16 over the Cincinnati Bengals (AFC)
- January 2 - Fiesta Bowl (1988 season):
- Victorian Football League
- May 6 – Geelong kicks the highest losing score in VFL/AFL history, kicking 25.13 (163) to Hawthorn’s 26.15 (171)
- June 24 – Essendon kicks the lowest winning score since the 1927 Grand Final, beating Footscray 3.10 (28) to 3.5 (23).
- Hawthorn wins the 93rd VFL Premiership beating Geelong 21.18 (144) d 21.12 (138)
- Brownlow Medal awarded to Paul Couch (Geelong)
- April 8 – One-handed pitcher Jim Abbott makes his major-league debut with the California Angels, without spending a single day in the minor leagues. He went on to a 12–12 record for the season.
- August 10 – Ten months after undergoing surgery for cancer in his pitching arm, San Francisco Giants pitcher Dave Dravecky returns to the major leagues, winning his comeback 4–3.
- August 15 – Dave Dravecky's comeback bid ends when his pitching arm breaks in the sixth inning of his second start. Two years later, the cancer-stricken arm would be amputated.
- August 24 – Following an investigation that he gambled on baseball, superstar player Pete Rose is banned from baseball for life.
- World Series – Oakland Athletics won 4 games to 0 over the San Francisco Giants in a series that was delayed because of the 1989 Loma Prieta earthquake. The Series MVP was Dave Stewart, Oakland.
- Taiwan Professional Baseball League, officially founded on October 23.
- NCAA Men's Basketball Championship –
- NBA Finals –
- National Basketball League (Australia) Finals:
- Gaelic football
- Ladies' Gaelic football
- Masters Tournament – Nick Faldo
- U.S. Open – Curtis Strange
- British Open – Mark Calcavecchia
- PGA Championship – Payne Stewart
- PGA Tour money leader – Tom Kite – $1,395,278
- Senior PGA Tour money leader – Bob Charles – $725,887
- Ryder Cup – Europe and the United States teams tied 14–14 in team golf.
- North America Cup – Goalie Jeff
- United States Pacing Triple Crown races –
- United States Trotting Triple Crown races –
- Australian Inter Dominion Harness Racing Championship –
- Australia – Melbourne Cup won by Tawrrific
- Canadian Triple Crown Races:
- Queen's Plate – With Approval
- Prince of Wales Stakes – With Approval
- Breeders' Stakes – With Approval
- With Approval becomes the first horse to win the Canadian Triple Crown since 1963.
- France – Prix de l'Arc de Triomphe won by Carroll House
- Ireland – Irish Derby Stakes won by Old Vic
- Japan – Japan Cup won by Horlicks
- English Triple Crown Races:
- United States Triple Crown Races:
- Breeders' Cup World Thoroughbred Championships:
- Art Ross Trophy as the NHL's leading scorer during the regular season: Mario Lemieux, Pittsburgh Penguins
- March 22 – St. Louis Blues’ Steve Tuttle slits the jugular vein of Buffalo Sabres’ goaltender Clint Malarchuk, with a total of 300 stitches needed to close the wound thanks to trainer Jim Pizzutelli.
- Hart Memorial Trophy for the NHL’s Most Valuable Player: Wayne Gretzky, Los Angeles Kings
- Stanley Cup – The Calgary Flames won 4 games to 2 over the Montreal Canadiens. This constitutes the only time that the visiting team won the cup at the Montreal Forum against the Canadiens.
- World Hockey Championship
- Men's champion: Soviet Union defeated Canada
- Junior Men's champion: Soviet Union defeated Sweden
- June 7 – 1989 Panasonic Cup tournament final: Brisbane Broncos 22–20 Illawarra Steelers at Parramatta Stadium
- June 14 – 1989 State of Origin title is wrapped up by Queensland in Game Two of the three-match series against New South Wales at the Sydney Football Stadium before 40,000.
- July 23 – first of the 1989–1992 World Cup's twenty tournament matches is won by Australia 22–14 over New Zealand at Mount Smart Stadium before 15,000
- September 24 – 1989 NSWRL season Grand Final: Canberra Raiders 19–14 Balmain Tigers at Sydney Football Stadium before 40,500.
- October 4 – 1989 World Club Challenge match is won by Widnes who defeats Canberra Raiders 30–18 at Old Trafford before 30,768
- Grand Slam in tennis men's results:
- Grand Slam in tennis women's results:
- Davis Cup – Germany F.R. won 3–2 over Sweden in world tennis.
- Men's Water Polo World Cup won by Yugoslavia
- Men's European Water Polo Championship won by West Germany
- Women's European Water Polo Championship won by the Netherlands
- "Epsom Derby | History, Winners, & Facts | Britannica". www.britannica.com. Retrieved January 4, 2022.