Fides is a feminine given name of Latin origin, meaning "Faith" (in honor of the Christian virtue; originally Greek Πίστις). It has different forms in various European national languages: French "Foy", Spanish "Fe", Russian "Vera" (Вера).
People with the name include:
Saints Fides (deity), goddess of trust in Roman mythology Saint Fides (Saint Faith), christian martyrs: Saints Faith, Hope and Charity and their mother Sophie (Wisdom) (d. 137) Saint Faith of Agen (d. 287 or 290)
Other
Fides Benini (1929–?), Italian former swimmer Fides Cuyugan-Asensio (born 1931), Filipino operatic soprano Fides Romanin (1934–2019), Italian cross-country skier