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Moira

Girls’ name Recorded 1913-2025

Moira was given to 93 girls in 2025, #2,047 among girls’ names; 7,941 Americans have been recorded with it since 1913 (Social Security Administration, published May 2026).

An estimated 7,200 Americans named Moira and born in the U.S. are alive in 2026 (91% of everyone recorded); the median is 31 years old and half are between 16 and 58.

Babies named Moira each year, first recorded in 1913
Moira, 1910-2025; highest in 1963.5010015019101930195019701990201020251963 peak: 144
Moira, 1910-2025; highest in 1963.5010015019101930195019701990201020251963 peak: 144
Moira, 1910-2025; highest in 1963.5010015019101930195019701990201020251963 peak: 144
Moira, 1910-2025; highest in 1963.5010015019101950199020251963 peak: 144

Girls and boys together; gaps are years SSA did not record (fewer than 5 births).

Births of Moira by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.

What does Moira mean?

Wiktionary, English section

Moira is “a female given name from Irish.”

Anglicized from Irish Máire, a cognate of Mary. Doublet of Maura.

/ˈmɔɪɹə/

From Wiktionary, the free dictionary, entry Moira (English), CC BY‑SA 4.0. Quoted from the entry; text after a cross-reference to another sense is left out.

Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).

How popular is Moira?

#2,047 among girls’ names, 2025

Moira fell from #1,638 in 2015 to #2,047 in 2025 among girls’ names; its share of girls born fell from 73.4 to 57.9 per million.

144 babies in 1963, the peak

Moira peaked in 1963, when 144 girls were given it, #877 among girls’ names. The 93 births of 2025 are 65% of that peak.

Moira by year
YearBirthsRankPer million girls
202593#2,04757.9
2024105#1,90864.8
2023114#1,79071.0
202294#2,06557.3
2021125#1,67476.2
2020110#1,80268.0
2019115#1,78368.5
2018133#1,61378.2
2017132#1,64276.5
2016118#1,77066.6
Every recorded year (107)
YearBirthsRankPer million girls
2015131#1,63873.4
2014126#1,68170.5
2013103#1,93558.7
2012115#1,78965.3
2011105#1,90459.7
201097#2,05454.6
2009109#1,92759.3
2008122#1,79864.5
2007112#1,87558.3
2006133#1,61170.0
2005128#1,59669.3
2004124#1,58967.5
2003132#1,48272.2
2002116#1,60164.6
2001111#1,64661.6
2000128#1,44270.5
1999131#1,35373.9
1998123#1,39969.6
1997133#1,30976.4
1996110#1,48762.7
1995124#1,33270.5
199491#1,65351.0
199382#1,78845.3
199275#1,88340.7
199179#1,80542.1
199062#2,11532.7
198951#2,32427.7
198873#1,74741.0
198760#1,90834.5
198659#1,90234.4
198558#1,91833.7
198459#1,82535.0
198371#1,57742.5
198280#1,50347.2
198173#1,61043.8
198070#1,65342.2
197969#1,63843.0
197861#1,72039.8
197770#1,55245.7
197665#1,55844.4
197554#1,74637.0
197459#1,61040.2
197367#1,44745.9
197274#1,36048.6
197186#1,28651.7
197074#1,41642.3
196994#1,14955.7
1968111#99767.7
196797#1,05758.8
1966110#98165.0
1965143#83481.0
1964143#86775.5
1963144#87774.7
1962120#97761.0
1961113#1,02656.0
1960124#96261.3
1959105#1,04251.9
1958126#91862.6
1957108#1,00652.8
195692#1,07145.8
1955102#99152.2
195491#1,03046.9
195380#1,08042.5
195273#1,10239.4
195166#1,15536.6
195038#1,51822.2
194944#1,40025.7
194841#1,45024.1
194732#1,71118.1
194620#2,13512.7
194515#2,30811.5
194418#2,07113.6
194317#2,21212.2
194229#1,54921.5
194120#1,86216.6
194020#1,82817.5
193922#1,66820.1
193812#2,53210.9
193724#1,56722.6
193614#2,23113.5
193519#1,82518.1
193419#1,81718.2
19339#3,0508.9
19326#4,2635.6
193112#2,53111.3
193014#2,38512.4
192911#2,8659.9
19288#3,6576.9
19278#3,7706.7
19268#3,7946.7
19258#3,9236.6
19245#5,6354.0
19236#4,7955.0
19227#4,3125.8
19218#3,9176.5
19166#4,2535.7
19135#3,5408.0

Download Moira’s births by year (CSV)

Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.

Is Moira a boy’s or a girl’s name?

Moira has been recorded only for girls: SSA lists no boys with the name in 107 years of records (it lists a name only in years with 5 or more babies of a sex).

Girls and boys named Moira: the SSA national file counts each sex separately.

How many people are named Moira, and how old are they?

7,200 alive in 2026, estimated

That is 91% of the 7,941 Americans ever recorded as Moira. The median Moira alive today is 31 years old; half are between 16 and 58.

The 2020 Census counted 7,659 people named Moira (7,643 women and girls, 16 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 6,788 born in the U.S. The Census count is 13% above that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.

Alive today, by age

90-9918
80-8991
70-79495
60-691,060
50-59721
40-49643
30-39 (median)789
20-291,240
10-191,130
0-91,020

Alive today, by generation

By generation
GenerationBornAlive
Silent Generation1928-194596
Baby Boomers1946-19641,340
Generation X1965-19801,200
Millennials1981-19961,180
Generation Z1997-20121,900
Generation Alpha2013-20251,490

An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.

Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).

Where are babies named Moira born?

The states with the most babies named Moira are New York, California and Illinois, with 47% of its births recorded by state since 1910.

States with the most births: girls and boys together; rank among girls’ names in the state in 2025
StateSince 1910Rank, girlsvs. national
New York893#1,9941.5×
California649#2,0460.7×
Illinois485not ranked1.3×
Pennsylvania476#1,5481.2×
Massachusetts389not ranked1.9×
Ohio253#1,6330.7×
New Jersey225not ranked0.9×
Texas165#3,1890.3×
Washington134not ranked0.9×
Michigan133not ranked0.4×

Where Moira is more common than its national share predicts

Relative to its national share, Moira is most over-represented in Massachusetts: since 1913 it was given 1.9 times as often there as its national share each year would predict.

New York1.53×
Illinois1.27×

Bars start at 1× (as often as the national share predicts).

States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among girls’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Moira with the births its national share predicts year by year, for states with at least 100 births of the name.

Names spelled alike

Of these 7 names spelled alike, given to 9,901 babies since 1880, Moira is the most given (80% of them). In 2025 it was given to 93 of their 121 babies (77%), again the most given.

Moira and the names spelled alike
NameSince 1880Births 2025Peak year
Moira7,941931963
Mora945142019
Moria557under 51977
Moorea164under 52000
Mori129142025
Moriya115under 52008
Morea50under 52020

Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.

Names that rose and fell in the same decades as Moira

Names whose births rose and fell across the same decades, measured on each decade’s share of births.

NameRecorded1910-2025
Daria9,068
Milagros10,479
Brigid6,504
Bronwyn3,729
Peri2,475
Silvana2,420

Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.

More about Moira and names like it

  1. Compare Moira and MoraBirths, ranks, peak and the living estimate side by side.
  2. The most given names of the 1960sMoira peaked in 1963.
  3. New York’s most given namesThe state where SSA recorded the most babies named Moira since 1910.
  4. Irish namesWiktionary’s origin for Moira: every such name, by how often it is given.
  5. The top names of 1963The year the most babies were named Moira.
  6. The names of Generation ZMost people named Moira alive today were born 1997-2012.
  7. Names starting with MMost given first.

Compare Moira with another name