Hermas is a masculine given name. Notable people with the name include:
Hermas of Dalmatia (1st century), one of the Seventy Disciples, feast day April 8 Hermas of Philippopolis (1st century), one of the Seventy Disciples, feast day May 31 Hermas (freedman) (2nd century), Christian mystic Hermas Deslauriers (1879–1941), Canadian physician
It is also a plant genus: Hermas (plant), a genus in the carrot family Apiaceae
See also Joseph-Hermas Saint-Hermas Hermes of Philippopolis