John Costello
John Costello is the name of the following people:
- John Costello (seaman) (1850– ??), American seaman
- John Costello (actor, 1878) (1878–1946), American actor
- John Costello (actor, II) , actor
- John Costello (musician) , American musician
- John Costello (historian) (1943–1995), British military historian
- John Costello (photographer) , American photographer
- John Costello (baseball player) (born 1960), American baseball player
- John A. Costello (1891–1976), Irish politician
- John M. Costello (1903–1976), American politician
See also:
