1984 in sports

Auto Racing

Stock car racing:
- NASCAR Championship – Terry Labonte
- Cale Yarborough won the Daytona 500
- Richard Petty won the 200th (and final) race of his career on July 4.
CART Racing – Mario Andretti won the season championship
- Indianapolis 500 – Rick Mears
Formula One Championship – Niki Lauda of Austria
24 hours of Le Mans:
- the team of Klaus Ludwig / Henri Pescarolo won, driving a Porsche 956
Rally racing – Stig Blomqvist in an Audi won the World Rally Championship
- the team of Walter Rohrl / Christian Geistdorfer won the Monte Carlo Rally driving an Audi Quattro
Drag racing – Joe Amato won the NHRA Top Fuel championship.

Baseball

January 10 – Luis Aparicio, Harmon Killebrew, and Don Drysdale are elected to the Baseball Hall of Fame

World Series: – Detroit Tigers win 4 games to 1 over the San Diego Padres

Basketball

NCAA Men's Basketball Championship:
- Georgetown wins 84–75 over Houston

NBA Finals:
- Boston Celtics won 4 games to 3 over the Los Angeles Lakers

Central Missouri State University won the NCAA Division II men's and women's basketball titles, becoming the first school ever in any division to accomplish the feat. The University of Connecticut would do the same in Division I in 2004.

NBA Draft:
- A new era in the NBA is born on June 23 with the drafting of Houston's Hakeem Olajuwon, North Carolina's Michael Jordan and Auburn's Charles Barkley.

Boxing

March 31 – Wilfredo Gomez defeats Juan Laporte by a decision in 12 rounds to conquer the WBC's world Featherweight crown.
June 15 – In the most anticipated bout of the year, Thomas Hearns, WBC world Jr. Middleweight champion, knocks out WBA world champion Roberto Duran in two rounds. The WBA elects not to sanction the bout, declaring their version of the title vacant instead.

Cricket

Courtney Walsh makes his test and one day international debut.
Inaugural edition of the Asia Cup is held in Sharjah, UAE. India defeat Pakistan in the final.

Cycling

Giro d'Italia won by Francesco Moser of Italy
Tour de France – Laurent Fignon of France
World Cycling Championship: Claude Criquielion of Belgium

Field Hockey

March 10 – In an international women's field hockey match at Wembley Stadium,England. Ireland beat England 1–0.
August 11 – In the Olympics Women's Field Hockey Tournament in Los Angeles, The Netherlands win the gold medal.
December 1 – 8: Sixth Men's Champions Trophy held for the 5th time in 6 editions in Pakistan in Karachi won again by Australia. Hosts Pakistan finish 2nd again.

Figure Skating

World Figure Skating Championships:
- Men's champion: Scott Hamilton, (United States)
- Women's champion: Katarina Witt, (Germany)
- Pairs champions: Barbara Underhill & Paul Martini, (Canada)

Football (American)

Super Bowl XVIII: Los Angeles Raiders won 38–9 over the Washington Redskins
Walter Payton breaks Jim Brown's rushing record on October 7th.

Football (Australian Rules)

Victorian Football League
- Essendon wins the 88th VFL Premiership (Essendon 14.21 (105) d Hawthorn 12.9 (81))
- Brownlow Medal awarded to Peter Moore (Melbourne)

Football (Canadian)

Grey Cup: Winnipeg Blue Bombers won 47–17 over the Hamilton Tiger-Cats
Vanier Cup: Guelph Gryphons won 22–13 over the Mount Allison Mounties

Football (Soccer)

European Championship: Final: France 2–0 Spain; Hosts: France
Champions' Cup: – May 30 – Liverpool 1–1 A.S. Roma; Liverpool won 4–2 on penalties after extra time.
UEFA Cup: Two legs; 1st leg Anderlecht 1–1 Tottenham Hotspur; 2nd leg Tottenham Hotspur 1–1 Anderlecht; 2–2 on aggregate, Spurs won 4–2 on penalties
Cup Winners' Cup: Juventus 2–1 Porto
Super Cup: Juventus 2–0 Liverpool
Copa Libertadores de América: Two legs; 1st leg Grêmio 0–1 Independiente; 2nd leg Independiente 0–0 Grêmio; Independiente won 1–0 on aggregate
League champions
- Argentina: Ferro Carril Oeste (Nacional), Argentinos Juniors (Metropolitano)
- Brazil: Fluminense (Campeonato Brasileiro)
- England: Liverpool
- France: Girondins de Bordeaux
- Italy: Juventus
- Netherlands: Ajax
- Portugal: Benfica
- Scotland: Aberdeen
- Spain: Athletic Bilbao
- West Germany: VfB Stuttgart
England – FA Cup: – May 12 – Everton win 2–0 against Watford

Golf

Men's Golf

Grand Slam of golf results:
1. May 1 – The Masters – Ben Crenshaw
2. June 1 – US Open – Fuzzy Zoeller
3. July – British Open – Seve Ballesteros
4. August 1 – PGA Championship – Lee Trevino

PGA tour's leading money winner for the year: Tom Watson – $476,260
PGA Champions Tour leading money winner: Don January – $328,597

Women's Golf

US Women's Open – Hollis Stacy
LPGA Championship – Patty Sheehan
Betsy King: leading money winner on the LPGA tour, earning $266,771

Thoroughbred Horse Racing

Australia – Melbourne Cup – Black Knight
Canada – Queen's Plate – Key to the Moon
France – Prix de l'Arc de Triomphe – Sagace
Ireland – Irish Derby Stakes – El Gran Senor

English Triple Crown Races:
1. Two Thousand Guineas Stakes – El Gran Senor
2. Epsom Derby – Secreto
3. St. Leger Stakes – Commanche Run

United States Triple Crown Races:
1. Kentucky Derby – Swale
2. Preakness Stakes – Gate Dancer
3. Belmont Stakes – Swale

Breeders' Cup:
1. Breeders' Cup Classic – Wild Again
2. Breeders' Cup Distaff – Princess Rooney
3. Breeders' Cup Juvenile – Chief's Crown
4. Breeders' Cup Juvenile Fillies – Outstandingly
5. Breeders' Cup Mile – Royal Heroine
6. Breeders' Cup Sprint – Eillo
7. Breeders' Cup Turf – Lashkari

Harness Racing

North America Cup – the inaugural event won by Legal Notice

United States Pacing Triple Crown races:
1. Cane Pace – On The Road Again
2. Little Brown Jug – Colt Fortysix
3. Messenger Stakes – Troublemaker

United States Trotting Triple Crown races:
1. Hambletonian – Historic Freight
2. Yonkers Trot
3. Kentucky Futurity – Fancy Crown

Australian Inter Dominion Harness Racing Championship:
- Pacers: Gammalite
- Trotters: Sir Castleton

Ice Hockey

Art Ross Memorial Trophy as the NHL's leading scorer during the regular season: Wayne Gretzky, Edmonton Oilers

Hart Memorial Trophy for the NHL's Most Valuable Player: Wayne Gretzky, Edmonton Oilers

Stanley Cup: Edmonton Oilers won 4 games to 1 over the New York Islanders

World Hockey Championship:
- Men's champion: (vacant) – the USSR won the Olympic Gold Medal
- Junior Men's champion: USSR defeated Finland

Skiing

Alpine Skiing
- The men's overall season champion: Pirmin Zurbriggen, Switzerland
- The women's overall season champion: Erika Hess, Switzerland
At the Winter Olympics, Bill Johnson becomes the 1st American to win the gold medal in downhill skiing.