Nemo

Boys' name

Nobody

Nemo has been given to 68 babies in the U.S. since 1922. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 2021, with 8 recorded.

Babies named Nemo, 2021

1 in 424,000

Nemo over time, 1880–2025

Boys
0246818801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Nemo: meaning, origin, and history

Nobody

Latin

What Nemo means

Nemo means “nobody”.

Documented naming usage and pronunciation

Nemo is used in Literature.

Another recorded pronunciation is /ˈniː.moʊ/ for Nemo.

Dictionary etymologyReferences, data & attribution

From Latin nemo. The "clownfish" meaning comes from the film Finding Nemo, where Nemo is a clownfish.

Excerpt from Wiktionary: Nemo (English) · CC BY-SA 4.0

Wiktionary material is available under CC BY-SA 4.0.

Origin, language, and formation

Nemo is used in English. Its origins include Latin.

Nemo comes through Latin nemo.

Related names and everyday forms

Related names include Geronimo.

Pronunciation and spelling

In English, Nemo is pronounced /ˈniːmoʊ/.

American usage and historical context

In the United States, 68 boys were recorded with the name Nemo between 1922 and 2021. Its highest annual count was 8 in 2021; its best national rank was #4,167 in 1922.

How common is Nemo?

Nemo had fewer than 5 recorded uses in 2025, so these figures use 2021, the last year it was published.

Among all babies, 2021
1 in 424,000
8 of 3,389,958 births
Among boys only
1 in 219,000
<0.01% of boys
Rank, 2021
Unranked
Fewer than 5 uses
Coin-flip room size
293,719 kids
Even odds of a second one

Where Nemo sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 2021 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 293,719 children born in 2021 and it's an even bet that one of them is another Nemo. In a class of 30 the chance is Under 1%.

When Nemos were born

Half of everyone ever recorded as Nemo was born before 2014 — so the typical Nemo is around 11 today.

Median birth year
2014
About 11 years old
Biggest decade
2010s
35.3% of all use
Born in the last 25 years
83.8%
A modern name
Recorded since 1950
62
People you could plausibly meet
Choose a decade

2010s — 35.3% of all recorded uses (24).

Is Nemo rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
—
Not ranked then
Rank vs 5 years ago
New entry
Not ranked then
Rank vs 10 years ago
—
Not ranked then
Births vs 10 years ago
—
Not published both years
Share of its own peak
0%
Peak was 2021 (8)
Years since peak
4
Years
Year-to-year steadiness
Shifting
18.8% average annual change
Best rank ever
#4,167
1922

Spellings of Nemo

Nemo is not the most common spelling — Leo is, with 47.2% against Nemo's 0.01%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Nemo around the world

Where Nemo ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • England & Wales
    2001–2012
    #3,987
    in 2012
  • France
    1990–2024
    #3,939
    in 2024
  • South Australia
    1989–2009
    #708
    in 2009

Popularity data from Office for National Statistics, Institut national de la statistique et des études économiques and Consumer and Business Services (South Australia). ONS data under Open Government Licence v3.0. INSEE data under Licence Ouverte / Etalab 2.0. CBS SA data under CC BY 4.0.

Nemo by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#4,167
1922
Peak year
2021
8 that year
First recorded
1922
Last recorded
2021
All-time count
68
Count in 2025
Under 5

Names similar to Nemo

Matched on shared beginnings and endings, similar length, and comparable popularity.

Sibling names for Nemo

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Nemo