Dr William James O'Donovan OBE (1886 – 13 January 1955) was a British dermatologist and Conservative Party politician. Born in Tonbridge, Kent, he was the son of Patrick O'Donovan from Clonakilty, County Cork, Ireland and his wife Beatrice née Gibson of Eynsford. He was educated at the University of London and abroad. Politically a Conservative, from 1931 to 1935 he was Member of Parliament (MP) for Mile End. He attempted to return to the Commons at the 1950 general election, unsuccessfully contesting Fulham West.