Jean-Baptiste Édouard Bornet (September 2, 1828 Guérigny – December 18, 1911 Paris} was a French botanist.
Member of the French Académie des sciences, he wrote the Notes algologiques (1847-1880) and the Études phycologiques (1878). He established the nature of lichens and was the first to find the reproductive process of red algae.
Bornet was elected a member of the Royal Swedish Academy of Sciences in 1888. He was admitted as a Foreign Member to the Royal Society in 1910.