Robert Cook may refer to:

• Robert Cook (Australian politician) (1867–1930), Australian politician
• Robert E. Cook (1920–1988), American attorney, politician, and judge
• Robin Cook (1946–2005), British Labour Party politician
• Bob Cook, candidate in the 2002 Winnipeg municipal election for city councillor of Transcona Ward
• Robert Cook, 14th-century member of the Parliament of England for Dunwich
• Robert Douglas Cook, Canadian political candidate for the Gay Alliance Toward Equality

• Robert Cook (swimmer) (born 1932), Bermudian former swimmer
• Robert Cook (wrestler) (1903–1963), British Olympic wrestler
• Bob Cook (professional wrestler) (born 1963), American professional wrestler
• Bob Cook (ice hockey) (1946–1978), Canadian ice hockey player
• Bobby Cook (basketball) (1923–2004), American basketball player

• Robert Cook (vegan) (1646–1726), Irish eccentric farmer and early veganism activist
• Robert Cook (veterinarian), equine veterinarian
• Robert A. Cook (1912–1991), president of The King's College in New York
• Robert Barclay Cook (born 1966), British hotelier
• Robert C. Cook (1898–1991), American geneticist and demographer
• Robert Edwin Cook (1863–1946), American architect and engineer
• Robert F. Cook (1880–1958), Christian missionary in India
• Robert L. Cook (born 1952), computer graphics researcher and developer
• Robert Manuel Cook (1909–2000), classical scholar and classical archaeologist from England
• Robert O. Cook (1903–1995), American sound engineer
• Robert Percival Cook (1906–1989), Australian-born biochemist
• Robert Raymond Cook (1937–1960), Canadian mass murderer
• Veda Hlubinka-Cook (born Robert Cook), video game programmer and co-founder of Metaweb
• Derek Raymond (pen name of Robert William Arthur Cook; 1931–1994), English crime writer
• Robert Cook (jurist), magistrate of the Australian Capital Territory

• Robert Coke (disambiguation)
• Cook (surname)
• Bert Cook (disambiguation)
• Bobby Cook (disambiguation)
• Rob Cook (disambiguation)
• Robert Cooke (disambiguation)