Recorded 1915–1932 Boys' name Peak 1923 199 births

Tamotsu — boys' name

199 babies named Tamotsu in U.S. Social Security records since 1915, with the highest year being 1923. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1910s381920s1431930s18
1920s
Peak decade

72% of everyone ever named Tamotsu was born in this single decade.

1923
Single peak year

26 babies were named Tamotsu in 1923 — its busiest year on record.

What the Data Says About Tamotsu

The Social Security Administration has registered 199 babies named Tamotsu between 1915 and 1932, spanning 18 consecutive years of U.S. birth records. As a boy's name, Tamotsu currently falls outside the top 1,000 boys' names for 1932. The name reached its historical peak in 1923, when 26 babies received it in a single year.

Decade-level aggregation shows that Tamotsu performed strongest in the 1920s, accumulating 143 births during that ten-year window. Across the 3 decades of recorded activity, Tamotsu shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Hawaii, which accounts for 149 births — the largest state-level total in the dataset — followed by California. In total, SSA state-level files list Tamotsu in 2 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Tamotsu in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 199 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.

Tamotsu at a glance

Last recorded 1932

Total births

199

Since 1915

18 years of records

Peak year

1923

26 births that year

Strongest decade: 1920s

Current rank

Unranked

Outside the modern top-1,000

As of 1932

Active since

1915

Recorded for 18 years

Last year on file: 1932

Tamotsu popularity over time

Annual U.S. births registered with the Social Security Administration · 1932–1915

Last recorded 1932
Peak year (1923)
26
Annual births at peak — across 18 years of records
51015202530 193219291927192519231921191919171915 11

Tamotsu by decade

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

Peak: 1920s
Peak decade
1920s
143 births that decade — 72% of Tamotsu's all-time total
1910s381920s1431930s18

Tamotsu by state

Where Tamotsu concentrates geographically — total births since 1915

Regionally concentrated
Top 2 states by recorded births for the name Tamotsu
Rank State Visual share Births Share of total
#1 Hawaii
149 74.9%
#2 California
12 6.0%
Hawaii share of Tamotsu's total US births 74.9%
Even split

149 of 199 births nationwide. Compared to a flat distribution across 2 reporting states.

Frequently Asked Questions

How popular is the name Tamotsu?
199 babies have been named Tamotsu since 1915. It was last recorded in 1932. The peak year was 1923 with 26 births.
When was Tamotsu most popular?
Tamotsu was most popular in the 1920s decade with 143 total births. The single peak year was 1923.
Where is Tamotsu most popular?
The top states for the name Tamotsu are Hawaii (149 births), California (12 births).
How long has the name Tamotsu been used?
Tamotsu has been recorded in Social Security data since 1915, spanning 18 years of data through 1932.
What names are similar to Tamotsu?
Names with a similar sound or spelling include Tamir, Tammy, Tam, Tamar, and 4 more. These share a common prefix and are also used for boys.

Data Sources

Data as of 2024. Source: U.S. Social Security Administration (SSA).

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1915–1932 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.

State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.