1827 in sports describes the year's events in world sport.

Boxing

Events

• 2 January — Peter Crawley defeats Jem Ward in 11 rounds at Royston to win the English Championship.^[1]
• 4 January — Crawley announces his retirement from boxing and refuses a return bout with Ward, who thereupon reclaims the title.^[1]

Cricket

Events

• In an effort to resolve the roundarm bowling controversy, MCC agrees to the staging of three trial matches between Sussex and All-England. No firm conclusions are drawn in the immediate aftermath of the trials and it will be many years before roundarm is formally legalised.
• 4 June — Cambridge University versus Oxford University at Lord's is the inaugural University Match. It will become an annual fixture in 1838.

England

• Most runs – Tom Marsden 308 @ 25.66 (HS 65*)
• Most wickets – William Ashby 29 (BB 8–?)

Horse racing

England

• 1,000 Guineas Stakes – Arab
• 2,000 Guineas Stakes – Turcoman
• The Derby – Mameluke^[2]
• The Oaks – Gulnare
• St. Leger Stakes – Matilda