Febris (), or Dea Febris (), is the Roman goddess of fevers, who embodied, but also protected people from, fever and malaria. Because of this, Febris was a feared goddess whom people wanted the favour of. She does not have a myth of her own nor is she mentioned in a myth. Among her characteristic attributes are "shrewdness" and "honesty", according to Seneca the Younger's Apocolocyntosis.
Febris was accompanied by two daughters or sisters of her named Dea Tertiana and Dea Quartana, the goddesses of tertian and quartan fever of malaria because the fever would come back in every three or four days. Theodorus Priscianus mentions Saturn as Tertiana and Quartana's father. The second temple was on the Esquiline and the last on the Vicus Longus. Febris' temples were visited by people with fevers. In those temples, people wore protective amulets against diseases, especially malaria at the time. She was invoked with the formula Febris diva, Febris sancta, Febris magna (Divine Fever, Holy Fever, Great Fever). An inscription, which was later revealed to be a possible forgery, saying Febri Divae, Febri Sanctae, Febri Magnae, Camilla Amata pro filio male affecto was discovered in Transylvania.
thumb|Goddess figure, possibly Febris
An inscription dedicated to Quartana in Nemausus, Gaul, dated to the third century (CIL 12.3129) and another inscription dedicated to Tertiana in Habitancum (Risingham), Northern England (CIL 7.999) were discovered.
The Ancient Greeks under Roman rule may have worshipped a similar fever god named Pyretos ), the analogous translation of the Roman goddess Febris.
Febris appears to a dying young woman named Albiera degli Albizzi. Despite never being physically described previously, Poliziano depicted Febris holding a torch in one hand and a snowball in the other, in a chariot drawn by monster-like lions which was accompanied by a train of monsters. She was described as looking "gruesome", similar to Erinyes, as opposed to the beauty of Albiera degli Albizzi. She gives a deadly poison to sick Albizzi after saying "those who live sweet, die sweet" and then flies away with the lions.