John Costello
John Costello may refer to:
- John Costello (baseball) (born 1960), American baseball pitcher
- John Costello (footballer) (1890–1915), English footballer
- John A. Costello (1891–1976), Taoiseach of Ireland
- John M. Costello (1903–1976), U.S. Representative from California
- John Costello (Medal of Honor recipient) (1850–?), U.S. Navy sailor and Medal of Honor recipient
- John Costello (1838 – 1923) Pastoralist
See also
- John Costelloe, Irish politician, member of Seanad Éireann from 1963–1965
- John Costelloe (actor) (died 2008), American actor
This disambiguation page lists articles about people with the same name.
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