John O'Donovan may refer to: John O'Donovan (scholar) (1806–1861), Irish language scholar and place-name expert John O'Donovan (politician) (1908–1982), Irish TD and Senator John O'Donovan (police commissioner) (1858–1927), New Zealand police commissioner John O'Donovan (Gaelic footballer) (1889–1920), Irish footballer John Francis O'Donovan (1918–1999), Irish chess master John O'Donovan, guitarist with The Adolescents punk band
See also John Donovan (disambiguation)