Conor O'Kelly (1873 - 13 October 1915) was an Irish Parliamentary Party Member of Parliament. Born in Claremorris, County Mayo, he became a leading member of the United Irish League and was elected the first chairman of Mayo County Council in 1899. He was dismissed as a Justice of the Peace in 1899 for expressing support for the Boers in the South African War. In 1900, he was elected Member of Parliament for North Mayo as candidate for the United Irish League, receiving more than twice as many votes as his opponent, industrialist William Martin Murphy, a supporter of the Healyite party.