Given name & surname
Fidelis
“faithful”
Fidelis is a given name from Latin. It is used in Polish.
Meaning & origin
What it means
Fidelis goes back to Latin Fidelis, meaning “faithful.”
Adapted from Wiktionary (CC BY-SA 4.0)
The story
Published U.S. birth records include this spelling as early as 1903. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Fidelis through the years
- Babies since 1880
- 163
- 49 boys · 114 girls
- Most popular year
- 1914
- 12 babies
- 2025
- 0
- Outside the ranked list
- 2021–25 vs 2016–20
- —
- Too few births to compare
By the numbers
The most recent published U.S. birth count for boys is 5 in 2011. Later missing counts do not mean the name went unused. Its largest published annual count for boys was 8 in 1917. Published U.S. population figures for this spelling include 598 as a first name in 2020; 134 as a surname in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Fidelis’s family of names
In Spanish usage, Fidelis has a short form in Fidel. In Polish usage, Fidelis has a conventional equivalent in the Italian form Fedele. Fidelis has a related form in Fidel.
Inner ring: spellings · middle: nicknames and forms · outer: across languages.
Around the world
Fidelis has relatives in 4 languages. Lines run from its Latin roots to each of them.
4 related names in 4 languages. Point at a dot, or tab to the map and use the arrow keys.
Nicknames & forms 1
Diminutives, pet forms, short forms and variants used alongside the name.
Spellings & scripts 2
The same name written differently, including transliterations into other scripts.
Across languages 2
Equivalents and cognates in other languages, plus older forms it grew from.
People named Fidelis
- Fidelis of SigmaringenCapuchin friar1577–1622
- Fidelis GadzamaNigerian sprinterborn 1979
- Fidelis RakotonarivoCatholic bishopborn 1956
- Fidelis FernandoSri Lankan Roman Catholic bishopborn 1948
- Fidelis ChojnackiPolish Capuchin friar, priest, and martyr (1906–1942)
- Fidelis OkoroNigerian politician
- Fidelis WainainaKenyan activist1965–2008
- Fidelis TapgunNigerian politician
- Fidelis of Comosoldier saint
Listed by how widely each person is written about, which says nothing about the name itself.
Similar names
If you love Fidelis, these share its style, era, origin or sound, from outside its own family.
Claudie
“one who is lame”
44% boys · 56% girls
Augusta
“venerable; majestic” · “one who is venerable; majestic”
5% boys · 95% girls
Alva
“one who has a fair complexion” · “a bright man”
24% boys · 76% girls
Firmius
“stable, firm”
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Fidalba
“trusted soul”
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Fileasz
Fileasz is a given name from Latin. It is used in Polish.
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Filidei
“of the son”
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Fibicjusz
Fibicjusz is a given name from Latin. It is used in Polish.
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