Baby Names Girl Names Meaning of the Name Fidelia Updated June 10, 2026 by Jennifer M. Fidelia Gender: Female Origin: Spanish Meaning: Faithful, Loyal ♥ Add to my Namelist What is the meaning of the name Fidelia? The name Fidelia is primarily a female name of Spanish origin that means Faithful, Loyal. People who like the name Fidelia also like: Vera, Gemma, Felicity, Aurelie, Hermione, Eleanor, Charlotte, Jasper, Errol, Elijah, Arthur, Grayson, Felix, Jonah Names like Fidelia: Fadil, Fidel, Fidelio, Fedella, Fedele, Fidella Stats for the Name Fidelia Fidelia is currently not in the top 100 on the Baby Names Popularity Charts Fidelia is currently not ranked in U.S. births