Girls' name · since 1914
Thetis
Since 1914, U.S. Social Security records show 147 babies named Thetis, peaking in 1915. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #23,009 of 72,339
- all-time among girls
- 147
- born since 1914
- 1920s
- peak decade
Thetis is not among the current top-ranked girls names; 147 have been recorded since 1914.
Thetis has 147 recorded births among girls since 1914, per the U.S. Social Security Administration, though it falls outside today's most-used girls names, busiest in the 1920s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1914 to 1949.
- #23,009 of 72,339 all-time among girls
- 147 born since 1914
- 1920s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Thetis ranks #23,009 of 72,339 girls' names by all-time recorded births (highest first). 147 born since 1914, peaking in the 1920s.
- #23,009 of 72,339
- all-time among girls
- 147
- born since 1914
- 1920s
- peak decade
Thetis's 147 recorded births place it above 68.19% of the 72,339 girls names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
Thetis's usage pattern, beyond the headline number
Thetis splits its recorded history at 1924: 46% of all births land in the more recent half, 54% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1918 (5 births) -- compare that against the 1915 peak of 10 for a sense of just how much the name's popularity has swung.
Thetis popularity over time
Annual U.S. births registered with the Social Security Administration · 1914–1949
- Peak year (1915)
- 10
- Annual births at peak, across 36 years of records
Thetis by decade
1920s is the heaviest window (72 births, 49% of the file).
1920s was Thetis's strongest decade.
72 babies received the name during that ten-year window, about 49% of all-time use.
Thetis births by decade
Total births in each ten-year window
- 1910s
1910s
47 births
- 1920s
1920s
72 births
- 1930s 10
1930s
10 births
- 1940s 18
1940s
18 births
What this shows Peak: 1920s at 72 births (49% of all-time use).
Frequently Asked Questions
How popular is the name Thetis? ▼
Where does Thetis sit in the SSA name archive? ▼
When was Thetis most popular? ▼
How long has the name Thetis been used? ▼
What names are similar to Thetis? ▼
What to do with Thetis's data
- Thetis's decade-level peak was the 1920s (72 total births); usage has since declined to 18 in the 1940s -- if you're weighing a "classic revival" angle, the trend line argues against it.
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Thetis
Nearby Names Like Thetis
Names with a similar sound, spelling, or feel to Thetis
Compare Thetis side by side: Thetis vs Theresa Thetis vs Thelma Thetis vs Therese
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Thetis: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1915)
Similar record span (~35 yrs)
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, 1914–1949 (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 Thetis 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.