US rank #4782 Girls' name Peak 1963 331,974 births

Tammy — #4782 US girls' name

331,974 babies named Tammy in U.S. Social Security records since 1934, with the highest year being 1963. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1930s311940s4901950s291791960s1822241970s988301980s156481990s33122000s15612010s5452020s154
#4782
of 17,661 girls in use

More common than 73% of names given to girls today.

1960s
Peak decade

55% of everyone ever named Tammy was born in this single decade.

1963
Single peak year

21,193 babies were named Tammy in 1963 — its busiest year on record.

What the Data Says About Tammy

The Social Security Administration has registered 331,974 babies named Tammy between 1934 and 2024, spanning 91 consecutive years of U.S. birth records. As a girl's name, Tammy currently holds the #4782 rank among girls for 2024. The name reached its historical peak in 1963, when 21,193 babies received it in a single year.

Decade-level aggregation shows that Tammy performed strongest in the 1960s, accumulating 182,224 births during that ten-year window. Across the 10 decades of recorded activity, Tammy shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 21,377 births — the largest state-level total in the dataset — followed by Ohio and Texas. In total, SSA state-level files list Tammy in 51 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Tammy 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 331,974 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.

Tammy at a glance

Outside the top 1,000

Total births

331,974

Since 1934

91 years of records

Peak year

1963

21,193 births that year

Strongest decade: 1960s

Current rank

#4,782

Among girls

As of 2024

Active since

1934

Recorded for 91 years

Last year on file: 2024

Tammy popularity over time — girls

Annual U.S. births registered with the Social Security Administration · 2024–1934

Outside the top 1,000
Peak year (1963)
21,193
Annual births at peak — across 91 years of records
-5,00005,00010,00015,00020,00025,000 202420122000198819761964195219401934 5

Tammy popularity over time — boys

1,392 total births recorded since 1938 (Tammy as boys' name)

Unisex variant — 1,392 births
020406080100 19991986198019741968196219561938 6

Tammy by decade

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

Peak: 1960s
Peak decade
1960s
182,224 births that decade — 55% of Tammy's all-time total
1930s311940s4901950s291791960s1822241970s988301980s156481990s33122000s15612010s5452020s154

Tammy by state

Where Tammy concentrates geographically — total births since 1934

Geographically diffuse
Top 8 states by recorded births for the name Tammy
Rank State Visual share Births Share of total
#1 California
21,377 6.4%
#2 Ohio
19,136 5.8%
#3 Texas
18,953 5.7%
#4 Pennsylvania
17,373 5.2%
#5 New York
15,682 4.7%
#6 Michigan
14,778 4.5%
#7 Illinois
14,584 4.4%
#8 North Carolina
14,530 4.4%
California share of Tammy's total US births 6.4%
Even split

21,377 of 331,974 births nationwide. Compared to a flat distribution across 51 reporting states.

Tammy appears in 51 states. Explore state details →

Frequently Asked Questions

How popular is the name Tammy?
331,974 babies have been named Tammy since 1934. It currently ranks #4782 among girls. The peak year was 1963 with 21,193 births.
When was Tammy most popular?
Tammy was most popular in the 1960s decade with 182,224 total births. The single peak year was 1963.
Where is Tammy most popular?
The top states for the name Tammy are California (21,377 births), Ohio (19,136 births), Texas (18,953 births).
How long has the name Tammy been used?
Tammy has been recorded in Social Security data since 1934, spanning 91 years of data through 2024.
What names are similar to Tammy?
Names with a similar sound or spelling include Tamara, Tami, Tammie, Tamika, and 4 more. These share a common prefix and are also used for girls.

Keep exploring Tammy

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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, 1934–2024 (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.