John Robb
John Robb may refer to:
- John Robb (1862–1913), Scottish civil engineer
- John Robb (author), American author, military analyst and entrepreneur
- John Robb (civil engineer), Ireland-born contractor and businessman in Australia
- John Robb (musician), British journalist and vocalist for punk band Goldblade
- John D. Robb, Chairman of the International Prayer Council
- John Donald Robb, American composer and ethnomusicologist
- Jimmy Robb or John "Jimmy" Robb, Scottish footballer
- John Robb (surgeon), Northern Irish surgeon and politician who served in Seanad Éireann, 1982–1989
- John Hanna Robb, Northern Irish politician
- John Morrow Robb, physician and politician in Ontario, Canada