Category:1866 in sports

• 1866 in sport by continent‎ (3 C)
• 1866 in sports by country‎ (5 C)

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• Sports organizations disestablished in 1866‎ (1 C)
• Sports organizations established in 1866‎ (1 C, 1 P)
• Recurring sporting events established in 1866‎ (8 P)
• Sports venues completed in 1866‎ (7 P)

B

• 1866 in baseball‎ (2 C)

C

• 1866 in cricket‎ (1 C)

F

• 1866 in football‎ (3 C)

G

• 1866 in golf‎ (1 P)

H

• 1866 in horse racing‎ (2 C, 2 P)

R

• 1866 in rugby union‎ (1 C)

W

• 1866 in water sports‎ (1 C)