1921 in sports describes the year's events in world sport.

American football

Association football

Brazil England Germany Republic of Ireland

Athletics

Men's 100 metres Lithuania Monaco

Australian rules football

VFL Premiership South Australian Football League West Australian Football League

Bandy

Sweden

Baseball

World Series Major League Baseball Negro leagues

Boxing

Events Lineal world champions

Canadian football

Grey Cup

Cricket

Events England Australia India New Zealand South Africa West Indies

Cycling

Tour de France Giro d'Italia

Figure skating

World Figure Skating Championships

Golf

Major tournaments Other tournaments

Horse racing

England Australia Canada France Ireland USA

Ice hockey

Stanley Cup

Motorsport

Multi-sport events

Far Eastern Championship Games Women's World Games

Rowing

The Boat Race

Rugby league

England Australia

Rugby union

Five Nations Championship

Shooting

Germany

Speed skating

Speed Skating World Championships

Tennis

Australia England France USA Davis Cup