John Robb

John Robb may refer to:
 * John Robb (1862–1913), Scottish civil engineer
 * John Robb (author) (born 1962), American author, military analyst and entrepreneur
 * John Robb (civil engineer) (1834–1896), Ireland-born contractor and businessman in Australia
 * John Robb (musician) (born 1961), British journalist and vocalist for punk band Goldblade
 * John D. Robb, Chairman of the International Prayer Council
 * John Donald Robb (1892–1989), American composer and ethnomusicologist
 * Jimmy Robb or John "Jimmy" Robb (born 1935), Scottish footballer
 * John Robb (surgeon) (c. 1933–2018), Northern Irish surgeon and politician who served in Seanad Éireann, 1982–1989
 * John Hanna Robb (1873–1956), Northern Irish politician
 * John Morrow Robb (1876–1942), physician and politician in Ontario, Canada