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Oona

#2,768 in 2025Girls' name

Form of Úna

Oona has been given to 1,776 babies in the U.S. since 1942. In 2025 it ranked #2,768 of 17,293 girls’ names in use. Its peak year was 2015, with 131 recorded.

Babies named Oona, 2025

1 in 53,500

Oona over time, 1880–2025

Girls
05010015018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Oona: meaning, origin, and history

Form of Úna

Irish

What Oona means

Oona is a form of Úna.

Meaning behind the documented name family

The name developed through Oona → Úna. The family’s proposed meaning is “lamb”, recorded in Irish with the source elements uan.

Origin, language, and formation

Oona is used in English and Finnish. Its origins include Irish.

Oona comes through Irish Úna.

Related names and everyday forms

Related names include Úna and Una.

Pronunciation and spelling

In Finnish, Oona is pronounced /ˈoːnɑ/.

American usage and historical context

In the United States, 1,776 girls were recorded with the name Oona between 1942 and 2025. Its highest annual count was 131 in 2015; its best national rank was #1,639 in 2015.

Over 5 years its rank fell, from #2,333 in 2020 to #2,768 in 2025. Over 10 years its rank fell, from #1,639 in 2015 to #2,768 in 2025.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Oona?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 53,500
62 of 3,315,165 births
Among girls only
1 in 25,900
<0.01% of girls
Rank, 2025
#2,768
of 17,293 girls’ names in use
Coin-flip room size
37,064 kids
Even odds of a second one

Where Oona sits on the popularity scale

Rarest published (5 a year)#1 — Olivia (13,544)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 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 37,064 children born in 2025 and it's an even bet that one of them is another Oona. In a class of 30 the chance is Under 1%.

When Oonas were born

Half of everyone ever recorded as Oona was born before 2015 — so the typical Oona is around 10 today.

Median birth year
2015
About 10 years old
Biggest decade
2010s
40.4% of all use
Born in the last 25 years
80.9%
A modern name
Recorded since 1950
1,759
People you could plausibly meet
Choose a decade

2010s — 40.4% of all recorded uses (718).

Is Oona 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
−284
Places dropped
Rank vs 5 years ago
−435
Places dropped
Rank vs 10 years ago
−1,129
Places dropped
Births vs 10 years ago
0.47×
Fewer babies than then
Share of its own peak
47.3%
Peak was 2015 (131)
Years since peak
10
Years
Year-to-year steadiness
Shifting
19.3% average annual change
Best rank ever
#1,639
2015

Spellings of Oona

Oona is not the most common spelling — Anna is, with 16.3% against Oona's 0.03%.

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.

Where Oona is used

Across 2016–2025, Oona was most concentrated in Oregon — about 1 in 5,556 girls, against 1 in 16,346 across all states with data. It was least common in Florida (1 in 100,000).

118 per 100,000

Most concentrated

  1. 1Oregon1 in 5,556
  2. 2New York1 in 7,692
  3. 3Massachusetts1 in 10,000
  4. 4Washington1 in 11,111
  5. 5California1 in 12,500
  6. 6Utah1 in 33,333
  7. 7Illinois1 in 50,000
  8. 8Michigan1 in 50,000

Shading is the share of that state's recorded girls 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.

Oona around the world

Where Oona 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
    1996–2025
    #1,512
    in 2025
  • Scotland
    2012–2025
    #780
    in 2025
  • Ireland
    1969–1981
    #533
    in 1981
  • France
    1989–2025
    #2,199
    in 2025
  • Canada
    2005–2024
    #2,463
    in 2024
  • South Australia
    1962–2008
    #796
    in 2008

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

Oona by the numbers

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

As a girl's name

Rank in 2025
#2,768
Trend vs 5 yrs ago
Down 435
Best rank ever
#1,639
2015
Peak year
2015
131 that year
First recorded
1942
Last recorded
2025
All-time count
1,776
Count in 2025
62

Names similar to Oona

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

JonaSonaTonaKionaZonaDeonaElonaAlonaTeonaKeonaIlonaYonaSedonaLonaVionaRionaZionaIonaVonaKonaKeyonaAnonaRhonaDiona

Sibling names for Oona

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 Oona

Top names of 2015, Oona's peak yearThe 2010s in fullOther names that peaked in 2015Girls' names starting with OFinnish Girl Names