Doody, a variant of O'Dowd (Ó Dubhda), is a surname of Irish heritage. It originated in the Kingdom of Uí Fiachrach Muaidhe as the name of the ruling dynasty. It may refer to:
People Alison Doody (born 1966), Irish actress and model C. William Doody (1931–2005), Canadian politician Edward Doody (1903−1968), Australian Roman Catholic bishop Jonathan Doody (born 1974), Thai mass murderer in 1991 Arizona shooting Margaret Doody (born 1939), Canadian writer of historical detective fiction, feminist literary critic and professor of literature Martha M. Vertreace-Doody (born 1945), American poet and author Michael Doody, Canadian politician Nick Doody (born 1972), British stand-up comedian Pat Doody (1938–1990), British broadcaster Patrick Doody (born 1992), American retired soccer player Patrick H. Doody (1840–1924), Irish soldier in the American Civil War awarded the Medal of Honor Rachel Doody (born 1984), New Zealand retired footballer Samuel Doody (1656–1706), English botanist Terrence Doody (born 1943), American literary scholar
Fictional characters the title puppet character of Howdy Doody, an American children's TV series Doody Cubee, the orange female Cubee from the British children’s show, Cubeez Doody, a character in the 1978 film Grease (film)