John Grogan (disambiguation)
John Grogan is an American journalist and non-fiction writer.
John Grogan may also refer to:
- John Grogan (politician), former Labour Member of Parliament for Keighley
- John Grogan (hurler), Irish retired hurler
- John J. Grogan, American labor union leader and New Jersey politician
- John S. Grogan, American football, basketball, and baseball player and coach