Boys' name · since 1954

Thaddis

10 babies named Thaddis in U.S. Social Security records since 1954, with the highest year being 1954. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

#35,706 of 45,481
all-time among boys
10
born since 1954
1950s
peak decade

Thaddis sits outside today's top ranks for boys, with 10 recorded since 1954.

According to the U.S. Social Security Administration, Thaddis has been recorded 10 times among boys since 1954, though it is not among the currently most-used boys names, with its heaviest use in the 1950s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1954 to 1957.

  • #35,706 of 45,481 all-time among boys
  • 10 born since 1954
  • 1950s peak decade

Data updated Aug 2026

The verdict

According to the U.S. Social Security Administration, Thaddis ranks #35,706 of 45,481 boys' names by all-time recorded births (highest first). 10 born since 1954, peaking in the 1950s.

#35,706 of 45,481
all-time among boys
10
born since 1954
1950s
peak decade
Rare archive record
All-time archive position

Thaddis's 10 recorded births place it above 21.08% of the 45,481 boys names in the full SSA archive.

National only
State-record footprint

No state rows cleared SSA’s public reporting threshold for this name.

Thaddis's usage pattern, beyond the headline number

Splitting Thaddis's full recorded timeline at 1957, 50% of its total births fall in the more recent half of the record versus 50% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 1954, with just 5 recorded births.

Thaddis popularity over time

Annual U.S. births registered with the Social Security Administration · 1954–1957

Last recorded 1957
Peak year (1954)
5
Annual births at peak, across 4 years of records
5 19541957 5

Thaddis by decade

1950s is the heaviest window (10 births, 100% of the file).

1950s was Thaddis's strongest decade.

10 babies received the name during that ten-year window, about 100% of all-time use.

Thaddis births by decade

Total births in each ten-year window

births

What this shows Peak: 1950s at 10 births (100% of all-time use).

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

Frequently Asked Questions

How popular is the name Thaddis?
Thaddis has been given to 10 babies in the U.S. since 1954, according to SSA data. Its archive ordinal is #35,706 of 45,481 among boys' names (total births, highest first). Its last appearance in the data was 1957. 5 babies were born in 1954, its single highest year.
Where does Thaddis sit in the SSA name archive?
According to the U.S. Social Security Administration, Thaddis ranks #35,706 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 Thaddis most popular?
Thaddis was most popular in the 1950s decade with 10 total births. The single peak year was 1954.
How long has the name Thaddis been used?
Thaddis has been recorded in Social Security data since 1954, spanning 4 years of data through 1957.
What names are similar to Thaddis?
Names with a similar sound or spelling include Thaddeus, Thad, Thatcher, Thane, and 4 more. These share a common prefix and are also used for boys.

Keep exploring Thaddis

Nearby Names Like Thaddis

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

Names with a similar number of total births

Nationwide names with similar peak year or record span

Two nationwide peer axes for Thaddis: 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, 1954–1957 (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 Thaddis 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.