John McCloskey (disambiguation)

John McCloskey (1810–1885) was an American Roman Catholic clergyman and first American Cardinal.

John McCloskey may also refer to:
 * Henry John McCloskey (1925–2000), Australian moral philosopher
 * John McCloskey (baseball manager) (1862–1940), American baseball manager
 * John McCloskey (pitcher) (1882–1919), American baseball pitcher
 * C. John McCloskey, Catholic priest