Of Latin origin.
From the Latin word “fidelis”, meaning faithful.
The Latin phrase “semper fidelis”, meaning “always faithful”, was used as French town’s Abbeville moto since the 14th century and was later also used as a motto by the United States Marine Corps.
Other forms of the name are Fidelio, Fidele. Fedele.
Feminine forms are Fidelia, Fidela.
Famous bearers are Fidel Castro, Fidel Ramos, Fidel Martinez.