Fidelius
“faithful, loyal”
Latin origin · Boy name
#1667US 2023
10Births / yr
→Stable
Top 1.2%Percentile
What does Fidelius mean and where does it come from?
Fidelius is derived from the Latin word 'fidelis', meaning faithful or loyal.
Cultural significance
The name is often associated with loyalty and faithfulness in various cultural contexts, including literature and religion.
Peak popularity
Reached #1667 in 2015 — currently #1667 in the US.
How else can you spell Fidelius?
Same sound, different look — useful if you want something slightly more distinctive
What middle names flow best with Fidelius?
Fidelius works best with short, strong middle names — one or two syllables keep the full name from becoming a mouthful
Fidelius Jack
One syllable · timeless choice
Fidelius John
One syllable · timeless choice
Fidelius Luke
One syllable · timeless choice
Fidelius Miles
One syllable · vintage charm
Fidelius Beau
One syllable · on the rise
Fidelius Brooks
One syllable · timeless choice
How popular is Fidelius right now?
Holding steady — currently #1667 in the US out of 135.5k tracked names
Fidelius is exceptionally rare — it does not appear in US Social Security records, meaning fewer than 5 babies per year have received this name.
What are good nicknames for Fidelius?
Common
FidFidieFidyElius
Famous people named Fidelius
FM
Fidelius M. V. M. van der Meer
A Dutch politician known for his work in local governance.
What names sound and feel like Fidelius?
Based on sound, origin, and style — parents who love Fidelius also consider these
Common questions about the name Fidelius
What does the name Fidelius mean?
Fidelius means "faithful, loyal" — a name rooted in Latin tradition that carries both historical depth and timeless appeal. The meaning reflects values that have made this name endure across generations.
How popular is the name Fidelius?
Fidelius is currently a distinctive and less common name as a baby name in the US and is holding steady in popularity, a reliable classic that parents consistently choose.
What is the cultural origin of Fidelius?
Fidelius originates from Latin tradition. Latin names tend to carry strong cultural heritage and have spread across the world through migration, literature, and religion over centuries.
What sibling names go well with Fidelius?
Fidelius pairs beautifully with sibling names that share a similar Irish heritage or complement its melodic and flowing sound. Names with a similar vibe create a cohesive sibling set without matching too closely.
Is Fidelius more of a girl or boy name?
Fidelius is primarily used as a boy name, giving it a clear, timeless character while remaining accessible to modern families.
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