John Grogan may refer to:
- John Grogan (British politician) (born 1961), Labour Member of Parliament for Selby, 1997–2010
- John Grogan (Canadian politician) (born c. 1951), Canadian politician and teacher
- John Grogan (journalist) (born 1957), American journalist and non-fiction writer
- John Grogan (hurler) (born 1956), Irish retired hurler