Boys' name · since 1912

Tadeusz

Since 1912, U.S. Social Security records show 423 babies named Tadeusz, peaking in 1917. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.

#8,739 of 45,481
all-time among boys
423
born since 1912
1910s
peak decade

Tadeusz is not among the current top-ranked boys names; 423 have been recorded since 1912.

Social Security Administration records show Tadeusz recorded 423 times among boys since 1912, though it doesn't currently rank among the most-used boys names, peaking in the 1910s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1912 to 2024.

  • #8,739 of 45,481 all-time among boys
  • 423 born since 1912
  • 1910s peak decade

Data updated Aug 2026

The verdict

According to the U.S. Social Security Administration, Tadeusz ranks #8,739 of 45,481 boys' names by all-time recorded births (highest first). 423 born since 1912, peaking in the 1910s.

#8,739 of 45,481
all-time among boys
423
born since 1912
1910s
peak decade
Above the archive median
All-time archive position

Tadeusz's 423 recorded births place it above 80.78% of the 45,481 boys names in the full SSA archive.

2 jurisdictions
State-record footprint

The state file records this name in 2 jurisdictions, led by Massachusetts.

Tadeusz's usage pattern, beyond the headline number

Tadeusz splits its recorded history at 1970: 38% of all births land in the more recent half, 62% in the earlier half, leaning more toward its earlier era than today's. The single quietest year was 1912 (5 births) -- compare that against the 1917 peak of 26 for a sense of just how much the name's popularity has swung.

Tadeusz popularity over time

Annual U.S. births registered with the Social Security Administration · 1912–2024

Last recorded 2024
Peak year (1917)
26
Annual births at peak, across 113 years of records
051015202530 19121919192619621980199620152024 5

Tadeusz by decade

1910s is the heaviest window (101 births, 24% of the file).

1910s was Tadeusz's strongest decade.

101 babies received the name during that ten-year window, about 24% of all-time use.

Tadeusz births by decade

Total births in each ten-year window

births

What this shows Peak: 1910s at 101 births (24% of all-time use).

Source U.S. Social Security Administration · Baby Names As of August 2026

Tadeusz by state

Where Tadeusz concentrates geographically, total births since 1912

Geographically diffuse
Top 2 states by recorded births for the name Tadeusz
Rank State Visual share Births Share of total
#1 Massachusetts
11 2.6%
#2 Ohio
5 1.2%
Massachusetts share of Tadeusz's total US births 2.6%
Even split

11 of 423 births nationwide. Compared to a flat distribution across 2 reporting states.

Frequently Asked Questions

How popular is the name Tadeusz?
423 babies have been named Tadeusz since 1912. All-time, it sits at #8,739 of 45,481 boys' names by recorded births. It was last recorded in 2024. The peak year was 1917 with 26 births.
Where does Tadeusz sit in the SSA name archive?
According to the U.S. Social Security Administration, Tadeusz ranks #8,739 of 45,481 boys' names by all-time recorded births (highest first). All-time ordinal matches browse popularity (total births DESC); the current ordinal uses the null SSA file. See /methodology#corpus-placement.
When was Tadeusz most popular?
Tadeusz was most popular in the 1910s decade with 101 total births. The single peak year was 1917.
Where is Tadeusz most popular?
The top states for the name Tadeusz are Massachusetts (11 births), Ohio (5 births).
How long has the name Tadeusz been used?
Tadeusz has been recorded in Social Security data since 1912, spanning 113 years of data through 2024.
What names are similar to Tadeusz?
Names with a similar sound or spelling include Tad, Tadeo, Tadd, Tadashi, and 4 more. These share a common prefix and are also used for boys.

What to do with Tadeusz's data

  • Tadeusz's usage has stayed within range of its 1910s decade-level peak (101 total births) through the 2020s (40) -- a comparatively stable name, not a fading trend.
  • Massachusetts records the most Tadeuszs (11 births) -- see the full state breakdown if geography matters to your decision. Massachusetts names

Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.

Keep exploring Tadeusz

Nearby Names Like Tadeusz

Names with a similar sound, spelling, or feel to Tadeusz

Names with a similar number of total births

Nationwide names with similar peak year or record span

Two nationwide peer axes for Tadeusz: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.

Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.

Data Sources

Data as of August 2026. Source: U.S. Social Security Administration (SSA).

According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1912–2024 (ssa.gov/oact/babynames).

State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).

Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Tadeusz draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.