Uno

Boys' name

Meaning uncertain in the cited reference

Uno has been given to 103 babies in the U.S. since 1908. 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 1918, with 15 recorded.

Babies named Uno, 1923

1 in 329,000

Uno over time, 1880–2025

Boys
05101518801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Uno: meaning, origin, and history

Meaning uncertain in the cited reference

Japanese

What Uno means

Uno is a form of Une.

Documented naming usage and pronunciation

Uno is used in Swedish and Estonian.

Dictionary etymologyReferences, data & attribution

Borrowed from Japanese 宇野 (Uno) or うの (Uno).

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

Wiktionary material is available under CC BY-SA 4.0.

Origin, language, and formation

Uno is used in English, Estonian and Swedish. Its origins include Japanese.

Related names and everyday forms

Related names include Une.

Pronunciation and spelling

In Estonian, Uno is pronounced /ˈuno/.

American usage and historical context

In the United States, 103 boys were recorded with the name Uno between 1908 and 1923. Its highest annual count was 15 in 1918; its best national rank was #1,518 in 1912.

How common is Uno?

Uno had fewer than 5 recorded uses in 2025, so these figures use 1923, the last year it was published.

Among all babies, 1923
1 in 329,000
7 of 2,302,410 births
Among boys only
1 in 157,000
<0.01% of boys
Rank, 1923
Unranked
Fewer than 5 uses
Coin-flip room size
227,988 kids
Even odds of a second one

Where Uno 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 1923 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 227,988 children born in 1923 and it's an even bet that one of them is another Uno. In a class of 30 the chance is Under 1%.

When Unos were born

Half of everyone ever recorded as Uno was born before 1916 — so the typical Uno is around 109 today.

Median birth year
1916
About 109 years old
Biggest decade
1910s
88.3% of all use
Born in the last 25 years
100.0%
A modern name
Recorded since 1950
0
People you could plausibly meet
Choose a decade

1910s — 88.3% of all recorded uses (91).

Is Uno 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 1918 (15)
Years since peak
107
Years
Year-to-year steadiness
Volatile
38.8% average annual change
Best rank ever
#1,518
1912

Where Uno is used

Across 1910–2025, Uno was most concentrated in Michigan — about 1 in — boys, against 1 in 465,262 across all states with data. It was least common in Minnesota (1 in —).

00 per 100,000

Most concentrated

  1. 1Michigan1 in —
  2. 2Minnesota1 in —

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Uno has too little recent state data to map, so this covers all years from 1910.

Uno 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
#1,518
1912
Peak year
1918
15 that year
First recorded
1908
Last recorded
1923
All-time count
103
Count in 2025
Under 5

Names similar to Uno

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

Sibling names for Uno

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 Uno