Baby Name Studio

Boy Name · Greek Origin

Athanasios

Rare · 10 letters · Immortal

Last reviewed: June 2026

Considering Athanasios? It is a boy name whose meaning is "Immortal", rooted in Greek naming tradition, and ranks in our Rare popularity tier. Phonetically it shares territory with Adonis, but stands on its own.

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Frequently asked about Athanasios

What does the name Athanasios mean?

Athanasios means "Immortal" and is of Greek origin.

What is the origin of Athanasios?

Athanasios originates in Greek naming tradition. Names of Greek origin often share recognizable sounds and cultural roots that shape how the name reads today.

How do you pronounce Athanasios?

Athanasios has 10 letters and is most commonly stressed on the first syllable. Tap the pronunciation player on this page to hear it spoken aloud.

Is Athanasios a boy's or girl's name?

Athanasios is primarily used as a boy's name in US records, though usage can vary by region and era.

How popular is Athanasios in 2026?

In our 2026 popularity tracker, Athanasios sits in the Rare tier — an uncommon, standout choice.

What names are similar to Athanasios?

Names that share Athanasios's sound and style include Adonis, Adams, Anastasios, Alexandros, Athena. Open the "Names like Athanasios" rail on this page for the full list.