Jean Bayet (12 November 1892 – 5 December 1969) was a French Latinist.
A Professor of Latin Language and Literature at the Sorbonne, he was Director-General of Education in 1944 and Director of the École française de Rome from 1952 to 1960.
A specialist of Latin literature and Religion in ancient Rome, Jean Bayet, through his works and the theses he directed, played a decisive role in the development of a French school of history of the Roman religion, particularly active in the second half of the twentieth century.