Donnybrook Fair was an annual fair that used to be held in Donnybrook, Dublin, and a slang term for a brawl or riot.

Donnybrook Fair may also refer to:

An annual fair held in Walsh, Ontario, named after the Dublin fair Donnybrook Fair, a painting by William Sadler (painter), c. 1839 Donnybrook Fair, a painting by Erskine Nicol, 1856

"At the Donnybrook Fair", musical composition by John Prindle Scott, 1916 "The Humours of Donnybrook Fair", 1830–1850, at least three songs about Dublin A chain of grocery/delicatessen stores in Ireland owned by the Musgrave Group See also Donnybrook, Dublin