1934 in sports describes the year's events in world sport.

FIS Alpine World Ski Championships 4th FIS Alpine World Ski Championships are held at St Moritz, Switzerland. The events are a downhill, a slalom and a combined race in both the men's and women's categories. The winners are:

• Men's Downhill – David Zogg (Switzerland)
• Men's Slalom – Franz Pfnür (Germany)
• Men's Combined – David Zogg (Switzerland)
• Women's Downhill – Anny Rüegg (Switzerland)
• Women's Slalom – Christl Cranz (Germany)
• Women's Combined – Christl Cranz (Germany)

NFL championship

• The New York Giants defeat the Chicago Bears 30–13 at the Polo Grounds, which is known as the "Sneakers Game"

College championship

• College football national championship – Minnesota Golden Gophers and Alabama Crimson Tide (shared)

International

• 1934 World Cup held in Italy – Italy defeats Czechoslovakia 2–1 in the final.
• 14 November – England defeats Italy 3–2 in the "Battle of Highbury".

England

• The Football League – Arsenal 59 points, Huddersfield 56, Tottenham 49, Derby 45, Manchester City 45, Sunderland 44
• FA Cup final – Manchester City 2 – 1 Portsmouth (Empire Stadium, Wembley, London)

Spain

• La Liga won by Athletic Bilbao

Germany

• National Championship won by Schalke 04

Italy

• Serie A won by Juventus

France

• French Division 1 won by FC Sète

• 9 June – Swiss runner Lina Aebersold sets a new world record in the women's 20 km walk in Zürich: 1:59:02.
• 9 – 11 August - 1934 Women's World Games, London
• 9 September – European Championships Marathon at Turin won by Arnas Toivonen (Finland) in a time of 2:52:29

VFL Premiership

• Richmond wins the 38th VFL Premiership, beating South Melbourne 19.14 (128) to 12.17 (89) at Melbourne Cricket Ground (MCG) in the 1934 VFL Grand Final

Brownlow Medal

• The annual Brownlow Medal is awarded to Dick Reynolds (Essendon)

South Australian National Football League

• 6 October – Glenelg win their first SANFL premiership, beating Port Adelaide 18.15 (123) to 16.18 (114)
• Magarey Medal awarded to “Blue” Johnson (Glenelg)

Western Australian National Football League

• 13 October – West Perth 11.7 (73) defeat East Fremantle 5.9 (39) for their sixth WANFL premiership
• Sandover Medal awarded to Sammy Clarke (Claremont-Cottesloe)

Sweden

• Championship final – Slottsbrons IF defeats IFK Uppsala 6–0 on the replay after a 1–1 tie in the first final.

Events

• The South American Basketball Championship 1934 in Buenos Aires is won by Argentina.

Events

• 14 June – Max Baer defeats Primo Carnera by an eleventh-round technical knockout at Long Island City to win the World Heavyweight Championship

Lineal world champions^[1]

• World Heavyweight Championship – Primo Carnera → Max Baer
• World Light Heavyweight Championship – Maxie Rosenbloom → Bob Olin
• World Middleweight Championship – vacant
• World Welterweight Championship – Jimmy McLarnin → Barney Ross → Jimmy McLarnin
• World Lightweight Championship – Barney Ross → vacant
• World Featherweight Championship – vacant
• World Bantamweight Championship – Panama Al Brown
• World Flyweight Championship – vacant

Grey Cup

• Sarnia Imperials defeat the Regina Roughriders 20–12^[2]

Events

• England undertake their first Test match tour of India, winning two Tests to nil
• 4 November – The inaugural Ranji Trophy begins with a match between Madras and Mysore at Chepauk, just over a year after Ranjitsinhji’s death.

England

• County Championship – Lancashire
• Minor Counties Championship – Lancashire Second Eleven
• Most runs – Harold Gibbons 2,654 @ 52.03 (HS 157)
• Most wickets – Tich Freeman 205 @ 23.18 (BB 8–103)
• Wisden Cricketers of the Year – Stan McCabe, Bill O‘Reilly, George Paine, Bill Ponsford, Jim Smith

Australia

• Sheffield Shield – Victoria
• Most runs – Don Bradman 1192 @ 132.44 (HS 253)
• Most wickets – Clarrie Grimmett 66 @ 21.83 (BB 7–57)

India

• Bombay Quadrangular – not contested

New Zealand

• Plunket Shield – Auckland

South Africa

• Currie Cup – Western Province

West Indies

• Inter-Colonial Tournament – Trinidad

Tour de France

• Antonin Magne wins the 28th Tour de France^[3]

Giro d'Italia

• Learco Guerra of Maino wins the 22nd Giro d'Italia

World Figure Skating Championships

• World Men's Champion – Karl Schäfer
• World Women's Champion – Sonja Henie
• World Pairs Champions – Emília Rotter and László Szollás

Events

• Inaugural Masters Tournament is held at Augusta National Golf Club in Georgia, USA. Until 1939, it is known as the Augusta National Invitational Tournament.

Men's professional

• Augusta National Invitational Tournament – Horton Smith
• U.S. Open – Olin Dutra
• British Open – Henry Cotton
• PGA Championship – Paul Runyan

Men's amateur

• British Amateur – Lawson Little
• U.S. Amateur – Lawson Little

Women's professional

• Women's Western Open – Marian McDougall

USA

• Hambletonian – Lord Jim
• Kentucky Futurity – Princess Peg

England

• Champion Hurdle – Chenango
• Cheltenham Gold Cup – Golden Miller
• Grand National – Golden Miller
• 1,000 Guineas Stakes – Campanula
• 2,000 Guineas Stakes – Colombo
• The Derby – Windsor Lad^[4]
• The Oaks – Light Brocade
• St. Leger Stakes – Windsor Lad

Australia

• Melbourne Cup – Peter Pan III

Canada

• King's Plate – Horometer

France

• Prix de l'Arc de Triomphe – Brantôme

Ireland

• Irish Grand National – Poolgowran
• Irish Derby Stakes – Patriot King and Primero^[a]

USA

• Kentucky Derby – Cavalcade
• Preakness Stakes – High Quest
• Belmont Stakes – Peace Chance

Stanley Cup

• Chicago Black Hawks defeat Detroit Red Wings 3 games to 1

Ice Hockey World Championships

Events

• 18 September – The Norwegian Ice Hockey Federation founded

• 2nd British Empire Games held in London, England^[5]
• 10th Far Eastern Championship Games held in Manila

FIS Nordic World Ski Championships

• 8th FIS Nordic World Ski Championships 1934 are held at Sollefteå, Sweden

The Boat Race

• 17 March — Cambridge wins the 86th Oxford and Cambridge Boat Race

• 1934 New Zealand rugby league season
• 1934 NSWRFL season
• 1933–34 Northern Rugby Football League season / 1934–35 Northern Rugby Football League season

• 47th Home Nations Championship series is won by England

• World Snooker Championship – Joe Davis beats Tom Newman 25–23

Speed Skating World Championships

• Men's All-round Champion – Bernt Evensen (Norway)

Australia

• Australian Men's Singles Championship – Fred Perry (Great Britain) defeats Jack Crawford (Australia) 6–3, 7–5, 6–1
• Australian Women's Singles Championship – Joan Hartigan Bathurst (Australia) defeats Margaret Molesworth (Australia) 6–1, 6–4

England

• Wimbledon Men's Singles Championship – Fred Perry (Great Britain) defeats Jack Crawford (Australia) 6–3, 6–0, 7–5
• Wimbledon Women's Singles Championship – Dorothy Round Little (Great Britain) defeats Helen Jacobs (USA) 6–2, 5–7, 6–3

France

• French Men's Singles Championship – Gottfried von Cramm (Germany) defeats Jack Crawford (Australia) 6–4, 7–9, 3–6, 7–5, 6–3
• French Women's Singles Championship – Margaret Scriven Vivian (Great Britain) defeats Helen Jacobs (USA) 7–5, 4–6, 6–1

USA

• American Men's Singles Championship – Fred Perry (Great Britain) defeats Wilmer Allison (USA) 6–4, 6–3, 3–6, 1–6, 8–6
• American Women's Singles Championship – Helen Jacobs (USA) defeats Sarah Palfrey Cooke (USA) 6–1, 6–4

Davis Cup

• 1934 International Lawn Tennis Challenge –  Great Britain at 4–1  United States at Centre Court, Wimbledon (grass) London, United Kingdom

• The New York Yacht Club retains the America's Cup as Rainbow defeats British challenger Endeavour, of the Royal Yacht Squadron, 4 races to 2

• Associated Press Female Athlete of the Year – Virginia Van Wie, LPGA golf
• Associated Press Male Athlete of the Year – Dizzy Dean, Major League Baseball

^a The Irish Derby Stakes was a dead heat.