Robert Cook may refer to:
Politics[edit]
- 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
Sports[edit]
- Robert Cook (swimmer) (born 1932), Bermudian former swimmer
- Robert Cook (wrestler) (1903–1963), British wrestler
- Bob Cook (1946–1978), Canadian ice hockey player
Others[edit]
- 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