Cosmo

“Order, decency, and beauty, from Greek” — Greek via Italian origin

Boy's name · #1932 in the US (2025) · 2020s

Cosmo has appeared in US records since 1910 — best rank #930 (1913) · 2,949 babies named Cosmo all-time · 1 in 20,000 boys born in 2025.

Around the world: about 1 in 3,600 boys in Switzerland (2024) · about 1 in 4,800 boys in England & Wales (2025) · about 1 in 5,400 boys in Austria (2025).

Appears in 2020-2025 birth records of 7 states. See the full state-by-state map on this page.

Famous Cosmos

Cosmo Jarvis — American actor and musician
Cosmo Gordon Lang — British archbishop and clergyman (1864-1945)
Cosmo Duff-Gordon — Scottish landowner and fencer (1862–1931)
Cosmo Hamilton — English novelist and playwright (1870–1942)
Cosmo Gordon, 3rd Duke of Gordon — British peer (1720-1752)

In stories & tradition

Cosmo Kramer — Seinfeld
Cosmo the Spacedog — Earth-616
Cosmo the Cougar — mascot character

What Cosmos become

Among 66 notable people named Cosmo:

Entertainers appear 1.66× more often than among typical names — e.g. Cosmo Jarvis, American actor and musician.

Browse more boy names — popularity, trends and eras for 5,700+ American names, free.