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Girls' name · 9,157 recorded births

Moira

#2,036 in the US in 2025

Where Moira stands

United States register · 1880–2025

#2,036girls’ names · US 2025

Moira was the 2,036th most registered girls' name in the United States in 2025, on 93 births.

peak 1963 · 144BELOW THE 5-BIRTH FLOOR — NOT PUBLISHED188019532025

Its moment was 1963, when 144 babies were given it. In 6 of the years between, the name fell under the 5-birth floor and the registrar published nothing — those years are the marks along the base of the chart, not gaps in the name's use.

SOURCE·US Social Security Administration, national baby-name data·Public domain. retrieved from the Internet Archive's 2026 snapshot of ssa.gov (ssa.gov refuses automated requests); files unmodified. SSA lists a name only if it was given to at least 5 babies of that sex that year.·REVIEWED JUL 2026

#2,036US rank, 2025 (girls)
93US births in 2025
#832its best US rank, in 1965
1963peak year — 144 births
7,941US births since 1913
1,173NZ births since 1906
43E&W births, 2019–2025
Saved in this browser only — no account, nothing sent anywhere.

How Moira's figures are worked out

  1. Counts come straight from the registrars: the US Social Security Administration (1880–2025) and the New Zealand Department of Internal Affairs (1900–2025). Nothing is scraped from another names site. The SSA files are the agency's own, retrieved from the Internet Archive's 2026 snapshot of ssa.gov (ssa.gov refuses automated requests); files unmodified.
  2. Ranks are computed against every name in that year's file, not just the ones this site publishes pages for — otherwise a rank would flatter every name we happen to list.
  3. The curve is drawn on births per 100,000 of that sex, not raw counts. Raw counts across eras are misleading: far more births were registered in 1957 than in 1890, so a flat count is a falling share.
  4. The reporting floor. Each registrar publishes a name only once it clears a threshold — 5 births of that sex in the US, 10 in New Zealand. Expressed as a share that threshold is itself a curve, and it is drawn on every chart here as the shaded band along the base.
  5. A missing year is a suppressed value, never a zero. Where the registrar published nothing, this site prints “below floor” or “<5”, the curve is broken rather than drawn across the gap, and the missing years are marked on the floor line. Moira was under the floor in 6 years of its US record.
share per 100,000 = births ÷ all births of that sex that year × 100,000
reporting floor (share) = 5 ÷ all births of that sex that year × 100,000

Full methodology →

Moira in the United States

18801900192019401960198020002020NOT PUBLISHED — BELOW THE 5-BIRTH FLOOR0.04.18.1
Births per 100,000 of that sex, so eras compare fairly. The shaded band is the 5-birth reporting floor — under it the registrar publishes nothing, so a line that stops has left the record, not fallen to zero. Moira in the United States, 1880–2025

Between 2016 and 2025 the name has been steady.

SOURCE·US Social Security Administration, national baby-name data·Public domain. retrieved from the Internet Archive's 2026 snapshot of ssa.gov (ssa.gov refuses automated requests); files unmodified. SSA lists a name only if it was given to at least 5 babies of that sex that year.·REVIEWED JUL 2026

Moira in New Zealand

In New Zealand, Moira has been registered 1,173 times since 1906, peaking in 1955 with 44 births. It did not clear the DIA's 10-birth reporting floor in 2025.

1900192019401960198020002020NOT PUBLISHED — BELOW THE 10-BIRTH FLOOR0.0116232
Births per 100,000 of that sex, so eras compare fairly. The shaded band is the 10-birth reporting floor — under it the registrar publishes nothing, so a line that stops has left the record, not fallen to zero. Moira in New Zealand, 1900–2025

SOURCE·NZ Department of Internal Affairs, births by first name·CC BY 4.0. DIA lists a name only if it was given to at least 10 babies of that sex that year.·REVIEWED JUL 2026

Moira in England & Wales

In England and Wales, Moira was registered 43 times between 2019 and 2025, peaking in 2025 with 10 births. It ranked #2,604 for girls in 2025 on 10 births. Across those years it has been rising.

2020NOT PUBLISHED — BELOW THE 3-BIRTH FLOOR0.02.03.9
Births per 100,000 of that sex, so eras compare fairly. The shaded band is the 3-birth reporting floor — under it the registrar publishes nothing, so a line that stops has left the record, not fallen to zero. Moira in England and Wales, 2019–2025

Seven years is a window, not a history. Unlike the American and New Zealand series this one cannot show you a name's arrival or its long decline — ONS publishes the full list only from 2019. England and Wales only: Scotland and Northern Ireland publish separately and are not counted here.

SOURCE·Office for National Statistics, baby names in England and Wales·Open Government Licence v3.0. ONS redacts any name given to 2 or fewer babies of that sex that year, under s40 of the Freedom of Information Act.·REVIEWED JUL 2026

Decade by decade in the US

US rank and births at each decade markSSA · JUL 2026
YearRankBirths
1920below floor<5
1930#2,30614
1940#1,79220
1950#1,49538
1960#961124
1970#1,40774
1980#1,64470
1990#2,10162
2000#1,431128
2010#2,04397
2020#1,792110

<5 = the SSA published no figure for that year. It is a suppressed value, not a zero.

Where in the United States

The states that registered Moira most often since 1913. These are lifetime totals, so they track state population as much as local taste — a name common in Wyoming will never out-count California.

Questions about Moira

How popular is the name Moira?

Moira ranked #2,036 for girls in the United States in 2025, on 93 births registered with the Social Security Administration.

When was Moira most popular?

Moira peaked in 1963, when 144 babies in the United States were given the name.

Is Moira rising or falling?

Measured as a share of all girls' births, Moira has been steady between 2016 and 2025.

Same sex, peaking within a few years of 1963, at a comparable scale. Not a taste engine — this is arithmetic on peak years, which is why it will occasionally hand you something unfashionable that is nonetheless exactly of the period.

SOURCE·US SSA (1880–2025) + NZ DIA (1900–2025) birth registrations·ranks and shares computed from the source files, see method·REVIEWED JUL 2026

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Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.