Boys' name · since 1908

Thelbert

931 babies named Thelbert in U.S. Social Security records since 1908, with the highest year being 1921. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

931
total births
1908–1985
years on record
1920s
peak decade
25%
born in that decade

Thelbert is not among the current top-ranked boys names; 931 have been recorded since 1908.

According to the U.S. Social Security Administration, Thelbert has been recorded 931 times among boys since 1908, though it is not among the currently most-used boys names, with its heaviest use in the 1920s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1908 to 1985.

  • 931 total births
  • 1908–1985 years on record
  • 1920s peak decade
  • 25% born in that decade

Data updated Jun 2026

The verdict

931 boys have been named Thelbert since 1908, peaking in the 1920s, last recorded in 1985.

931
total births
1908–1985
years on record
1920s
peak decade
25%
born in that decade
1920s
Peak decade

25% of everyone ever named Thelbert was born in this single decade.

1921
Single peak year

32 babies were named Thelbert in 1921 - its busiest year on record.

Thelbert's usage pattern, beyond the headline number

Splitting Thelbert's full recorded timeline at 1939, 37% of its total births fall in the more recent half of the record versus 63% in the earlier half -- the name was more prevalent in its earlier era than it is today. Its quietest year on record was 1908, with just 5 recorded births -- worth weighing against the 1921 peak of 32 to see the full range of the name's swing in popularity.

Thelbert at a glance

Last recorded 1985

Total births

931

Since 1908

78 years of records

Peak year

1921

32 births that year

Strongest decade: 1920s

Current rank

Unranked

Outside the modern top-1,000

As of 1985

Active since

1908

Recorded for 78 years

Last year on file: 1985

Thelbert popularity over time

Annual U.S. births registered with the Social Security Administration · 1908–1985

Last recorded 1985
Peak year (1921)
32
Annual births at peak, across 78 years of records
010203040 190819171925193319411949195819721985 5

Thelbert by decade

Total births in each ten-year window, peak vs trough at a glance

1920s was Thelbert's strongest decade.

230 babies received the name during that ten-year window, about 25% of all-time use.

Thelbert births by decade

Total births in each ten-year window

births

What this shows Peak: 1920s at 230 births (25% of all-time use).

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

How Thelbert compares to similarly-sized names

Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 boys names closest to Thelbert's total volume

Thelbert vs 15 similarly-sized boys names

Thelbert vs 15 similarly-sized boys names Scatter plot of 16 data points. 0%2%4%6%8%10% 050100150 New & already peakedOld name, single-era peakNew & still diversifyingLong history, steady all along Years in SSA records % of total births in the single peak year Thelbert
Thelbert vs 15 similarly-sized boys names

Thelbert by state

Where Thelbert concentrates geographically, total births since 1908

Geographically diffuse
Top 5 states by recorded births for the name Thelbert
Rank State Visual share Births Share of total
#1 North Carolina
63 6.8%
#2 Texas
22 2.4%
#3 Virginia
6 0.6%
#4 Kentucky
5 0.5%
#5 Tennessee
5 0.5%
North Carolina share of Thelbert's total US births 6.8%
Even split

63 of 931 births nationwide. Compared to a flat distribution across 5 reporting states.

Frequently Asked Questions

How popular is the name Thelbert?
931 babies have been named Thelbert since 1908. It was last recorded in 1985. The peak year was 1921 with 32 births.
When was Thelbert most popular?
Thelbert was most popular in the 1920s decade with 230 total births. The single peak year was 1921.
Where is Thelbert most popular?
The top states for the name Thelbert are North Carolina (63 births), Texas (22 births), Virginia (6 births).
How long has the name Thelbert been used?
Records for Thelbert go back to 1908, giving 78 years of history through 1985.
What names are similar to Thelbert?
Names with a similar sound or spelling include Theodore, Theo, Theron, Theadore, and 4 more. These share a common prefix and are also used for boys.

What to do with Thelbert's data

  • Thelbert's decade-level peak was the 1920s (230 total births); usage has since declined to 17 in the 1980s -- if you're weighing a "classic revival" angle, the trend line argues against it.
  • North Carolina records the most Thelberts (63 births) -- see the full state breakdown if geography matters to your decision. North Carolina names
  • Weighing it against an alternative? Put two names side by side. Compare names

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

Data Sources

Data as of June 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, 1908–1985 (ssa.gov/oact/babynames).

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

Cite this page

NameAlmanac Editorial. "Thelbert: Baby Name Since 1908 - 931 Births, Peak 1921." NameAlmanac. Accessed via https://namealmanac.com/name/thelbert. Licensed CC BY-SA 4.0.

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 Thelbert 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 June 2026.