Cosmo

Cosmo: name meaning, origin and popularity

Boy nameGreek origin

Meaning and origin of Cosmo

  • A male given name from Ancient Greek.

Etymology

Borrowed by Scotland from Italy in the 18th century. An Italian variant of Cosimo, from the name Cosmas of a saint (martyred with his brother Damian in the fourth century), from Ancient Greek κόσμος (kósmos, “order, ordered universe”).

How popular is Cosmo?

80U.S. babies in 2025
#933peak rank (1913)
2,955babies since 1880

Since 1880, 6 girls and 2,949 boys in the U.S. have been named Cosmo (0% girls). Its highest rank for girls was #13984 in 2022. Its highest rank for boys was #933 in 1913. In 2025, 80 babies were given the name, outside the top 1,000.

18801920196020002025105 peak/yr
U.S. births per year with this name, 1880–2025 (SSA)

More Greek boy names

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Sibling name ideas for Cosmo

Sister and brother names that share Cosmo's Greek roots and are still in the U.S. top 1,000.

Cosmo FAQ

What does the name Cosmo mean?

A male given name from Ancient Greek. Borrowed by Scotland from Italy in the 18th century. An Italian variant of Cosimo, from the name Cosmas of a saint (martyred with his brother Damian in the fourth century), from Ancient Greek κόσμος (kósmos, “order, ordered universe”).

What is the origin of the name Cosmo?

Cosmo is listed as a name of Greek origin.

How popular is the name Cosmo?

Since 1880, 6 girls and 2,949 boys in the U.S. have been named Cosmo (0% girls). Its highest rank for girls was #13984 in 2022. Its highest rank for boys was #933 in 1913. In 2025, 80 babies were given the name, outside the top 1,000.

Is Cosmo a boy or girl name?

Cosmo is mostly a boy name in the U.S.: 6 girls and 2,949 boys since 1880.

Popularity data: U.S. Social Security Administration baby name data, 1880–2025 (names given to 5+ babies per year). Origin and etymology text: Wiktionary, available under CC BY-SA 4.0.