John Casey may refer to:
- John Casey (academic), British academic and a writer for The Daily Telegraph
- John Casey (Chuck), fictional character portrayed by Adam Baldwin on the television show Chuck
- John Casey (commentator) (born 1964), Australian journalist and sports broadcaster
- John Casey (mathematician) (1820—1891), Irish geometer
- John Casey (novelist) (born 1939), American novelist and translator
- John P. Casey, President of General Dynamics Electric Boat
- John J. Casey (1875—1929), Democratic member of the U.S. House of Representatives from Pennsylvania
- Jack Casey, John "Jack" Casey, (born 1935), member of the New Jersey General Assembly
Famous quotes containing the words john and/or casey:
“What did you go out into the wilderness to look at? A reed shaken by the wind? What then did you go out to see? Someone dressed in soft robes? Look, those who wear soft robes are in royal palaces. What then did you go out to see? A prophet? Yes, I tell you, and more than a prophet.”
—Bible: New Testament, Matthew 11:7-9.
Jesus speaking about John the Baptist.
“I pass the test that says a man who isn’t a socialist at 20 has no heart, and a man who is a socialist at 40 has no head.”
—William Casey (1913–1987)