Cosmo

♂ Boy

Pronounced KOZ-moh /ˈkɑz.moʊ/Medium

Meaning: From the Greek name Kosmas, derived from 'kosmos' meaning 'order, beauty, harmony'.Medium

In 30 seconds: Cosmo comes from the Greek name Kosmas, rooted in 'kosmos', meaning 'order, beauty, harmony'. It carries an elegant, classical ring.

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Origin MediumGreek

MeaningFrom the Greek name Kosmas, derived from 'kosmos' meaning 'order, beauty, harmony'.

U.S. rank (2025)#1934 ↘ Falling

2025 U.S. births80 boys (0.00% of U.S. boys)

Peak year2022

Total births (all-time)≈ 2,949

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

The name traces to the Greek Kosmas, formed from 'kosmos', the word for 'order', 'beauty', and 'harmony'. Cosmo is the Italian form, long familiar through Italian use, and its meaning of cosmic order gives it a refined, world-minded quality. Forms of the name appear across several languages.

It keeps company with variants such as the Italian Cosimo and the Greek Kosmas, all turning on the same idea of harmony and order.

Did you know? The meaning usually attached to Cosmo is 'origin uncertain', and that core idea is what gives the name most of its long-term appeal.

Overall data confidence 78%

Behind the Name - Cosmo — etymology, usage, pronunciation, and related formsU.S. Social Security Administration — 2024 popularity rank and count supplied in the batch input CSV

Variations

CosimoCosmaCosmasKosmasKuzman

Nicknames

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Famous Bearers

★Cosmo Jarvis (1989-)
English actor and former singer-songwriter who played John Blackthorne in the series Shogun
★Cosmo Sheldrake (1990-)
British musician, composer and producer known for layered, sample-based songs

If you like Cosmo…

Cypress— shares Cosmo's Greek roots

Cyan— another nature pick

Zephyr— lands in the same popularity range

Cedar— a fellow Greek choice

Bishop— a similarly popular pick

Explore names like Cosmo

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Frequently Asked

What does the name Cosmo mean?

Cosmo is usually explained as meaning 'origin uncertain' and is most often linked with Italian tradition.

How do you pronounce Cosmo?

It's commonly said KOZ-moh /ˈkɑz.moʊ/.

Is Cosmo a boy or girl name?

In this batch and in recent U.S. usage data, Cosmo is used as a boy name.

How popular is Cosmo?

In 2024, Cosmo ranked #1683 in the U.S. for boys, with 99 births recorded.