Fidelio
- US rank
- Unranked
- Syllables
- 3
- Peak
- #3,505 in 1955
0 babies were named Fidelio in the US in 2025.
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US births per million boys, 1955–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Fidelio you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- HistoryFidelio first shows up in US birth records in 1955, the first year at least 5 babies got it. It has been in use for 70 years since.
- Best yearIts best year was 1955, when it reached #3,505.
About the name Fidelio
Fidelio is a boy name of Italian and Latin origin. It has 7 letters and 3 syllables, starting with F and ending in “-lio”. US birth records list Fidelio for boys only in 1955, the one year at least 5 babies got it. Its best year was 1955, when it ranked #3,505 among boy names. It hasn't been given to 5 or more US babies in a year since 1955, so today it's a genuinely rare choice.
Origin:Italian namesLatin names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1950s | 2.9 | 344,828 boys |
More Italian boy names
- Unisex name: Luca · man from Lucania
- Boy name: Leo · lion
- Unisex name: Luka · man from Lucania
- Boy name: Leonardo · brave as a lion
- Boy name: Emiliano · rival, striving
- Boy name: Lorenzo · from Laurentum
- Unisex name: Giovanni · God is gracious
- Boy name: Matteo · gift of God
Questions about the name Fidelio
What is the origin of the name Fidelio?
Fidelio has Italian, Latin roots in our records. Other Italian names include Luca, Leo, Luka.
Is Fidelio a boy or girl name?
Fidelio is a boy name.
How popular is the name Fidelio?
Fidelio is rare: fewer than 5 US boys got it in 2025, and it was last given to 5 or more in 1955. It peaked at #3,505 in 1955.