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:
“There St. John mingles with my friendly bowl
The feast of reason and the flow of soul;”
—Alexander Pope (1688–1744)
“Poor Casey Jones he was all right,
He stuck by his duty both day an’ night,”
—Unknown. Casey Jones. . .
Oxford Book of Light Verse, The. W. H. Auden, ed. (1938)