Consultus Fortunatianus, also known as C. Chirius Fortunatianus, was a Latin Christian rhetor who lived in the 4th–5th century AD, perhaps of African ancestry. He wrote an Ars rhetorica,[1] in three books. This work was published before 435, since it was used by Martianus Capella.[2] One of the manuscripts (Cod. Bodmer 146, 10th century) was owned by Francesco Petrarca, who studied and commented on it with many glossa.[3]