Robert Rich may refer to:
Nobility Robert Rich, 2nd Baron Rich (c. 1537–1581) Robert Rich, 1st Earl of Warwick (1559–1619), English nobleman Robert Rich, 2nd Earl of Warwick (1587–1658), English naval officer and politician Robert Rich, 3rd Earl of Warwick (1611–1659) Robert Rich, 5th Earl of Warwick (c. 1619–1675) Sir Robert Rich, 2nd Baronet (c. 1648–1699), English member of parliament and a Lord of the Admiralty Sir Robert Rich, 4th Baronet (1685–1768), British field marshal Sir Robert Rich, 5th Baronet (1717–1785), British general
Others Robert Rich (Bermuda settler) (1585–1630), English soldier and adventurer Robert F. Rich (1883–1968), politician from Pennsylvania Robert E. Rich Sr. (1913–2006), inventor of non-dairy whipped topping, founder of Rich Products Robert E. Rich (1926–2025), American intelligence official Robert G. Rich Jr. (born 1930), U.S. ambassador to Belize Robert E. Rich Jr. (born 1941), chairman of Rich Products Corporation Robert R. Rich (born 1941), professor of medicine, microbiology and medical education Robert Rich (musician) (born 1963), American ambient musician Robert Rich, the Oscar-winning pseudonym used by Dalton Trumbo (born 1905)