John Mullen may refer to: John Mullen (catcher) (1856–1909), baseball player John Mullen (baseball executive) (1924–1991), baseball executive John Mullen (Australian executive) (born 1955), Australian corporate executive John J. Mullen (American football), American football coach John J. Mullen (mayor) (1876–1952), American politician John Joseph Mullen (1829–1897), member of the Queensland Legislative Council John Kernan Mullen (1847–1929), Irish-American businessman, philanthropist John A. Mullen (?–1929), American judge John Mullen (politician), American politician
See also Jack Mullens (1896–1978), Australian politician John McMullen (disambiguation)