The name is a Scandinavian contracted form of Sofia or an Italian short form of Fiammetta.
As of 2010, its Faroese and Icelandic form of Fía was the 7th most popular female name in the Faroe Islands.
Other forms of the name include:
- Fie (Dutch/Scandinavian)
- Fía (Faroese/Icelandic)
- Fii(j)a (Finnish)
- Fiiju (Finnish)
- Fia (Italian/Scandinavian)
- Phia (Swedish)