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Given to both sexes · 16,205 recorded births

Bertie

#8,860 in the US in 2025

Where Bertie stands

United States register · 1880–2025

#8,860girls’ names · US 2025

Bertie was the 8,860th most registered girls' name in the United States in 2025, on 11 births.

peak 1928 · 396188019532025

Its moment was 1928, when 396 babies were given it. In 39 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

#8,860US rank, 2025 (girls)
11US births in 2025
#154its best US rank, in 1886
1928peak year — 396 births
13,736US births since 1880
121NZ births since 1900
8E&W births, 2019–2025
Saved in this browser only — no account, nothing sent anywhere.

How Bertie'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. Bertie was under the floor in 39 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 →

Bertie in the United States

188019001920194019601980200020200.052104
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. Bertie in the United States, 1880–2025
girlsboys

Between 1986 and 2025 the name has been rising — up 135% as a share of girls' births.

Bertie is given to both sexes: 13,744 female and 2,461 male births on record. The two curves rarely move together, which is why they are drawn separately rather than summed.

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

Bertie in New Zealand

In New Zealand, Bertie has been registered 121 times since 1900, peaking in 1900 with 21 births. It did not clear the DIA's 10-birth reporting floor in 2025.

1900192019401960198020002020NOT PUBLISHED — BELOW THE 10-BIRTH FLOOR0.0118235
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. Bertie 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

Bertie in England & Wales

In England and Wales, Bertie was registered 8 times between 2019 and 2025, peaking in 2024 with 5 births. It did not clear the ONS reporting floor of 3 in 2025.

20200.04284
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. Bertie in England and Wales, 2019–2025
girlsboys

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
1880#16977
1890#188158
1900#221203
1910#278195
1920#378306
1930#439234
1940#635123
1950#1,25054
1960#3,09516
1970#3,87215
1980below floor<5
1990below floor<5
2000below floor<5
2010below floor<5
2020#10,2509

<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 Bertie most often since 1880. 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 Bertie

How popular is the name Bertie?

Bertie ranked #8,860 for girls in the United States in 2025, on 11 births registered with the Social Security Administration.

When was Bertie most popular?

Bertie peaked in 1928, when 396 babies in the United States were given the name.

Is Bertie rising or falling?

Measured as a share of all girls' births, Bertie has been rising between 1986 and 2025 (+135%).

Same sex, peaking within a few years of 1928, 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.