Moreen

Girls' name

Form of Móirín

Moreen has been given to 263 babies in the U.S. since 1926. 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 1956, with 12 recorded.

Babies named Moreen, 1998

1 in 735,000

Moreen over time, 1880–2025

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Moreen: meaning, origin, and history

Form of Móirín

Deeper origin not confirmed in the cited records

What Moreen means

Moreen is a form of Móirín.

Documented naming usage and pronunciation

Moreen is used in Irish and English.

Another recorded pronunciation is /mɔ.ˈɹin/ and /ˈmɔɹ.in/ for Moreen.

Related names and everyday forms

Related names include Móirín.

American usage and historical context

In the United States, 263 girls were recorded with the name Moreen between 1926 and 1998. Its highest annual count was 12 in 1956; its best national rank was #3,364 in 1950.

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.

How common is Moreen?

Moreen had fewer than 5 recorded uses in 2025, so these figures use 1998, the last year it was published.

Among all babies, 1998
1 in 735,000
5 of 3,677,189 births
Among girls only
1 in 353,000
<0.01% of girls
Rank, 1998
Unranked
Fewer than 5 uses
Coin-flip room size
509,768 kids
Even odds of a second one

Where Moreen 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 1998 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 509,768 children born in 1998 and it's an even bet that one of them is another Moreen. In a class of 30 the chance is Under 1%.

When Moreens were born

Half of everyone ever recorded as Moreen was born before 1957 — so the typical Moreen is around 68 today.

Median birth year
1957
About 68 years old
Biggest decade
1950s
29.3% of all use
Born in the last 25 years
14.4%
Spread across generations
Recorded since 1950
196
People you could plausibly meet
Choose a decade

1950s — 29.3% of all recorded uses (77).

Is Moreen 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 1956 (12)
Years since peak
69
Years
Year-to-year steadiness
Shifting
22.0% average annual change
Best rank ever
#3,364
1950

Spellings of Moreen

Moreen is not the most common spelling — Morgan is, with 43.5% against Moreen's 0.05%.

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.

Moreen around the world

Where Moreen 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.

  • France
    1990–2013
    #6,873
    in 2013
  • South Australia
    1947–1958
    #598
    in 1958

Popularity data from Institut national de la statistique et des études économiques and Consumer and Business Services (South Australia). INSEE data under Licence Ouverte / Etalab 2.0. CBS SA data under CC BY 4.0.

Moreen by the numbers

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

As a girl's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#3,364
1950
Peak year
1956
12 that year
First recorded
1926
Last recorded
1998
All-time count
263
Count in 2025
Under 5

Names similar to Moreen

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

Sibling names for Moreen

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 Moreen