Boy Name · Greek Origin
Athanasios
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.
Athanasios meaning, origin, and usage
Meaning: Immortal
Origin: Greek naming roots help connect Athanasios to related Greek baby names.
Pronunciation: Baby Name Studio pronounces Athanasios as A·T·H·A·N·A·S·I·O·S, with 10 letters and a boy usage profile.
Popularity: According to Baby Name Studio's 2026 tracker, Athanasios is an uncommon, standout choice in the Rare tier.
Athanasios variants, nicknames, middle names, and sibling names
- Variants and spelling ideas: Athanasiosa, Athanasiose, Athanasiosy, Athanasio.
- Nicknames: Athan and A.
- Middle names: Pair Athanasios with a middle name that balances its substantial sound; start with the Athanasios middle name generator.
- Sibling names: Adonis, Adams, Anastasios, Alexandros, Athena — full picks on the sibling names for Athanasios guide for a cohesive sibset.
- Similar names: Looking for names that sound like Athanasios? Browse our names like Athanasios guide for phonetic-neighbor picks.
- Explore more: use the Baby Name Explorer, name search, AI name generator, and Baby Name Studio homepage.
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.
How do you pronounce Athanasios?
Athanasios has 10 letters and is most commonly stressed on the first syllable.
Is Athanasios a boy's or girl's name?
Athanasios is primarily used as a boy's name in US records.
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.
What middle names pair well with Athanasios?
Good middle-name fits for Athanasios pair an opposite syllable rhythm: if Athanasios is short, lean longer (e.g. classical or three-syllable middles); if Athanasios is longer, a one-syllable middle keeps the full name from feeling heavy.
What are good sibling names for Athanasios?
Sibling names that pair naturally with Athanasios share its rhythm without rhyming — Adonis, Adams, Anastasios all sit comfortably alongside it on a shortlist.