Given name & surname

Cosimo

“the order of the universe”

Cosimo is a variant of Cosmo. One Greek interpretation is “the order of the universe.”

Meaning & origin

What it means

Cosimo is a variant of Cosmo. One Greek interpretation is “the order of the universe.”

Explained through its name family

Where it comes from

Cosimo is a variant of Cosmo. An origin associated with Cosmo is Greek.

Explained through its name family

How it developed

In Italian usage, Cosimo developed from Κοσμᾶς.

The story

Published U.S. birth records include this spelling as early as 1911. This is the earliest published observation available here, rather than a date for the name’s origin.

From dated birth records

Cosimo through the years

Babies since 1880
1,016
1,016 boys · 0 girls
Most popular year
1927
30 babies
2025
16
#5,654 for boys
2021–25 vs 2016–20
+27%
Rising
0102030192019401960198020002025Highest share 19279.4
Cosimo in U.S. Social Security birth records, 1911–2025, per million boys born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.

By the numbers

In 2025, this name appeared in 16 U.S. birth records for boys, ranking No. 5,654 among boys’ names. Average annual use for boys was 27.1% higher in 2021–2025 than in 2016–2020. Its largest published annual count for boys was 30 in 1927. Published U.S. population figures for this spelling include 779 as a first name in 2020.

From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.

Cosimo’s family of names

In English usage, Cosimo has a feminine form in Cosima. Cosimo has a related form in Cosmo. In Italian usage, Cosimo has a conventional equivalent in the English form Cosmo.

Walk Cosimo’s family in the name graph

CosimoCosmoCosmiCosimaCosmeKuzmaКузьмаGësmëniΚοσμᾶς

Inner ring: nicknames and forms · outer: across languages.

Hover or tab through the constellation to see how each name is related. Bigger dots are names more people in the U.S. share.

Around the world

Cosimo has relatives in 5 languages.

EnglishItalian

7 related names in 5 languages. Point at a dot, or tab to the map and use the arrow keys.

Each dot marks where a language is rooted, not where people with the name live today. Bigger dots hold more names. Language locations from Glottolog (CC BY 4.0); map from Natural Earth.

Nicknames & forms 2

Diminutives, pet forms, short forms and variants used alongside the name.

Similar names

If you love Cosimo, these share its style, era, origin or sound, from outside its own family.

 

Constantino

“one who is steadfast; firm”

23RareRising

>99% boys

 

Camillo

“a ceremonial attendant; a noble virgin” · “one who is born free; one who is noble”

21RareRising fast

>99% boys

Old-fashioned

Odis

Odis is a masculine given name.

20RareSteady

>99% boys

Italian · Old-fashioned

Gennaro

“born of Janus”

22RareRising

>99% boys

Spanish · Old-fashioned

Margarito

“resembling a pearl”

22RareRising

>99% boys

Slavic · Vintage revival

Casimir

“one who demands peace”

36RareRising fast

>99% boys

Old-fashioned

Lucious

“surrounded by light”

25RareEasing

>99% boys

Old-fashioned

Ottis

“a wealthy man” · “one who is acute”

20RareRising fast

>99% boys

Sibling ideas

Names that share Cosimo’s feel without repeating its first letter or rhyming with it.

A brother for Cosimo

A sister for Cosimo