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Boy name · Greek

Cosmo

Name meaning, origin and popularity

: order, decency

Cosmo is a boy's name that comes from Greek and means "order, decency". It is used in English and Italian.

Meaning
Order, decency
Origin
Greek
Gender
Boy
US rank
#1934 in 2025

Meaning and origin of Cosmo

As a boy's name, Cosmo comes from Greek and means "order, decency". It is used in English and Italian.

Meanings come from published name dictionaries, led by Behind the Name. How we research names

Cosmo on Nomezo lists

What our editors wrote about Cosmo on 8 lists.

  • “Spacey, curious and full of big ideas”

    From Funny middle names, funny middle names for boys

  • “Named for the airy, daisy-like annual flower”

    From Funny nicknames for gardeners, nicknames for flower gardeners

  • “Greek for order or universe; a Rover top-100 male cat name”

    From Boy cat names, classic boy cat names

  • “Greek for order and universe, cool and retro”

    From Boy dog names, unique male dog names

  • “From Cosmas, a doctor-saint; Greek for order”

    From Priest names, cool priest names

  • “Curious, spacey and full of energy”

    From Goat names, boy goat names

  • “Space-age name for a pet that looks like an alien”

    From Axolotl names, unique axolotl names

  • “Order, decency; Greek, from kosmos, also a word for the universe”

    From Unique boy names, uncommon boy names from Greek and Latin

How popular is Cosmo?

US rank in 2025
#1,934
80 babies, 47 per million boys
Best rank
#933 in 1913
Most babies: 99 in 2022
Babies since 1910
At least 2,949
Years with under 5 are not listed
1880s1900s1920s1940s1960s1980s2000s2020s
Babies per million US boys, by decade (the 2020s so far, to 2025). Highest in the 2020s, at 49 per million.
Babies named Cosmo per million US boys, by decade; highest in the 2020s
1880s0 per million
1890s0 per million
1900s0 per million
1910s38 per million
1920s41 per million
1930s27 per million
1940s13 per million
1950s9 per million
1960s6 per million
1970s8 per million
1980s6 per million
1990s9 per million
2000s13 per million
2010s15 per million
2020s49 per million
US rank by year
Year2016201720182019202020212022202320242025
Rank#4,652#2,848#2,903#2,631#2,271#1,933#1,708#1,749#1,688#1,934

Source: US Social Security Administration baby-name data, 1880 to 2025, as published in 2026. Each spelling is counted separately, a name given to fewer than 5 babies of one sex in a year is left out, and few people born before 1937 have records, which is why the chart shows babies per million rather than raw counts.

Other forms of Cosmo

The same name in other languages and spellings, with the same meaning and origin.

  • CosmeOrder, decency (Greek, boy)
  • KosmasOrder, decency (Greek, boy)
  • KuzmaOrder, decency (Greek, boy)

Names spelled like Cosmo

One or two letters apart, but from a different root: they look alike without sharing a meaning.

  • CosimoOrder, universe (Greek, boy)
  • CastoPure, chaste (Latin, boy)
  • ColmA dove (Latin, boy)
  • CômeOrder, universe (Greek, boy)

Names with a similar meaning

  • CosimaOrder, decency (Greek, girl)
  • RitsuLaw, order (depends on kanji) (Japanese, unisex)

Middle names for Cosmo

Picked from our middle-name lists with a different first letter and a longer length, so the full name flows.

  • AmbroseImmortal one (Greek, boy)
  • FrederickPeaceful ruler (Germanic, boy)
  • HarrisonSon of Harry (English, boy)
  • HunterOne who hunts (Old English, boy)
  • JeremiahGod will exalt (Hebrew, boy)
  • PrestonPriest's town (Old English, boy)
  • ShaneGod is gracious (Hebrew, boy)
  • WilderUntamed (English, boy)

More boy names from Greek

  • AlexanderDefender of men (Greek, boy)
  • LucasMan from Lucania (Greek, boy)
  • ChristianFollower of Christ (Greek, boy)
  • LeonA lion (Greek, boy)
  • HectorHolding fast (Greek, boy)
  • TheoGift of God (Greek, boy)
  • AlexisHelper, defender (Greek, boy)
  • LucaMan from Lucania (Greek, boy)
  • PeterRock, stone (Greek, boy)
  • SebastianMan of sebaste, venerable (Greek, boy)

Cosmo: common questions

What does the name Cosmo mean?

Cosmo comes from Greek and means "order, decency".

Is Cosmo a boy or girl name?

Cosmo is mainly a boy's name.

Where does the name Cosmo come from?

Cosmo comes from Greek and means "order, decency". Today it is used in English and Italian.

How popular is the name Cosmo?

Cosmo ranked #1,934 in the US in 2025, with 80 babies given the name, according to Social Security Administration data.

What are other forms of Cosmo?

Forms of Cosmo with the same meaning and origin include Cosme (Portuguese), Kosmas (Greek) and Kuzma (Russian).

What middle names go with Cosmo?

Middle names that flow well with Cosmo include Ambrose, Frederick, Harrison, Hunter and Jeremiah. A different first letter and a contrasting length usually sound best.