Cayeux is a surname. Notable people with the surname include:
Anseau de Cayeux, a French knight from Picardy Caroline Cayeux (born 1948), French politician Laetitia Garriott de Cayeux (born 1978), American entrepreneur Lucien Cayeux (1864–1944), French sedimentary petrographer Marc Cayeux (born 1978), Zimbabwean professional golfer Richard Garriott de Cayeux (born 1961), American video game developer and private astronaut
Other
Cayeux (disambiguation)