Recorded 1912–1965 Boys' name Peak 1917 199 births

Lieutenant — boys' name

199 babies named Lieutenant in U.S. Social Security records since 1912, with the highest year being 1917. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1910s361920s501930s271940s491950s241960s13
1920s
Peak decade

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

1917
Single peak year

12 babies were named Lieutenant in 1917 — its busiest year on record.

What the Data Says About Lieutenant

The Social Security Administration has registered 199 babies named Lieutenant between 1912 and 1965, spanning 54 consecutive years of U.S. birth records. As a boy's name, Lieutenant currently falls outside the top 1,000 boys' names for 1965. The name reached its historical peak in 1917, when 12 babies received it in a single year.

Decade-level aggregation shows that Lieutenant performed strongest in the 1920s, accumulating 50 births during that ten-year window. Across the 6 decades of recorded activity, Lieutenant shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Mississippi, which accounts for 5 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Lieutenant in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Lieutenant 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.

Lieutenant at a glance

Last recorded 1965

Total births

199

Since 1912

54 years of records

Peak year

1917

12 births that year

Strongest decade: 1920s

Current rank

Unranked

Outside the modern top-1,000

As of 1965

Active since

1912

Recorded for 54 years

Last year on file: 1965

Lieutenant popularity over time

Annual U.S. births registered with the Social Security Administration · 1965–1912

Last recorded 1965
Peak year (1917)
12
Annual births at peak — across 54 years of records
468101214 19651953194519401932192319181912 6

Lieutenant by decade

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

Peak: 1920s
Peak decade
1920s
50 births that decade — 25% of Lieutenant's all-time total
1910s361920s501930s271940s491950s241960s13

Lieutenant by state

Where Lieutenant concentrates geographically — total births since 1912

Geographically diffuse
Top 1 states by recorded births for the name Lieutenant
Rank State Visual share Births Share of total
#1 Mississippi
5 2.5%
Mississippi share of Lieutenant's total US births 2.5%

5 of 199 births nationwide.

Frequently Asked Questions

How popular is the name Lieutenant?
199 babies have been named Lieutenant since 1912. It was last recorded in 1965. The peak year was 1917 with 12 births.
When was Lieutenant most popular?
Lieutenant was most popular in the 1920s decade with 50 total births. The single peak year was 1917.
Where is Lieutenant most popular?
The top states for the name Lieutenant are Mississippi (5 births).
How long has the name Lieutenant been used?
Lieutenant has been recorded in Social Security data since 1912, spanning 54 years of data through 1965.
What names are similar to Lieutenant?
Names with a similar sound or spelling include Liem, Liev, Lief, Liel, and 3 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, 1912–1965 (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.