John Grogan (born 1957) is an American journalist and non-fiction writer.
John Grogan may also refer to:
John Grogan (politician) (born 1961), former Labour Member of Parliament for Keighley John Grogan (hurler) (born 1956), Irish retired hurler John J. Grogan (1914–1968), American labor union leader and New Jersey politician John S. Grogan (1880–1952), American football, basketball, and baseball player and coach
See also Grogan (surname)