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Vasilios

♂ Boy

Pronounced vah-SEE-lee-os /vɑˈsi.li.ɔs/Medium

Meaning: The Greek form of Basil — from Greek basileios, 'kingly, royal' (from basileus, 'a king')Medium

In 30 seconds: Kingly; royal: Vasilios is the Greek Basil — 'kingly, royal'. Lyrical, classic, and warm (said 'vah-SEE-lee-os').

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Origin MediumGreek

MeaningThe Greek form of Basil — from Greek basileios, 'kingly, royal' (from basileus, 'a king')

U.S. rank (2025)#5377 ↗ Rising

2025 U.S. births18 boys (0.00% of U.S. boys)

Peak year1975

Total births (all-time)≈ 1,500

Popularity in the U.S. · SSA data

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Vasilios is the Greek form of Basil — from Greek basileios, 'kingly, royal' (from basileus, 'a king'). The name honors St Basil the Great, a founding father of Eastern monasticism. A lyrical, classic, regal Greek name (said 'vah-SEE-lee-os'; nicknames Vasili, Bill).

In the U.S. it appears in Greek families. Rare, kingly-and-royal at the root, and regal.

Did you know? Basil means 'kingly, royal' (Greek basileios, from basileus, 'a king') — Vasilios is its full Greek form, lyrical and regal (St Basil the Great; said 'vah-SEE-lee-os').

Overall data confidence 72%

Behind the Name — Vasilios — root etymology

Variations

VasiliVasilisBasil

Nicknames

Vasili

Famous Bearers

Famous bearers coming soon.

If you like Vasilios…

Basil— the English form

Basilio— the Italian/Spanish form

Dimitrios— echoes that soft -os sound

Demetrios— shares Vasilios's Greek roots

Nikolaos— a fellow Greek choice

Explore names like Vasilios

By themegreek saint regal

By meaningRoyal / Noble

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Frequently Asked

What does the name Vasilios mean?

Vasilios is the Greek Basil — 'kingly, royal'.

How do you pronounce Vasilios?

It's said vah-SEE-lee-os /vɑˈsi.li.ɔs/ — four syllables, stress on the second.

Is Vasilios a boy or girl name?

Vasilios is a boy's name.

How popular is Vasilios?

Vasilios is a rare name in the U.S.