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Robert Chambers (priest) (1571–1628), English Catholic priest, writer and translator •
Robert Chambers (publisher, born 1802) (1802–1871), Scottish publisher, writer, and scientist known for
Vestiges of Creation and, with his brother William Chambers, ''Chambers's Encyclopaedia'' •
Robert Chambers Jr. (1832–1888), Scottish publisher and amateur golfer, son of the above •
R. C. Chambers (Robert Craig Chambers, 1832–1901), American businessman, minerals miner, banker, politician, sheriff, and silver mine supervisor •
Robert Chambers (biologist) (1881–1957), American biologist •
Robert G. Chambers (1924–2016), British physicist known for the first observation of the Aharonov-Bohm effect •
Robert Chambers (development scholar) (born 1932), British academic and development practitioner •
Robert Chambers (criminal) (born 1966), American criminal also known as the "Preppie Killer"