See also: 1911 in sports, other events of 1912, 1913 in sports and the list of 'years in sports'.

Baseball

• April 20: The Boston Red Sox open in the new Fenway Park with a 7-6, 11-inning win over the New York Highlanders before 27,000. Minutes later, the Detroit Tigers opens remodeled Navin Park (later renamed Tiger Stadium), and beats the Cleveland Indians 6-5 in 11 innings before 24,384.
• The Winnipeg Maroons win the Northern League Championship.

Cricket

• Triangular Test tournament played between England, Australia, and South Africa in England. England won, Australia second.

Football (Australian Rules)

• Victorian Football League - Essendon wins the 16th VFL Premiership (Essendon 5.17 (47) d South Melbourne 4.9 (33))

Football (soccer)

England

• First Division - Blackburn Rovers win the 1911-12 title.
• FA Cup - Barnsley beat West Bromwich Albion 1–0 (aet) in a replay. The first match finished 0–0 (aet).

General sporting events

• 1912 Summer Olympics takes place in Stockholm, Sweden
  • First usage of electronic timing and public address systems.
  • Sweden wins the most medals (65), and United States wins the most gold medals (25).

Births

• July 16 — Ben Bril, Dutch Jewish boxer (d. 2003)
• July 17 — Pál Kovács, Hungarian fencer (d. 1995)

Deaths

1912 | 1912 in sports

1912 en sport | 1912年のスポーツ | Sportåret 1912