Recorded 1921–1991 Boys' name Peak 1991 21 births

Lb — boys' name

21 babies named Lb in U.S. Social Security records since 1921, with the highest year being 1991. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1920s101940s51990s6

The verdict

21 boys have been named Lb since 1921, peaking in the 1920s, last recorded in 1991.

21
total births
1921–1991
years on record
1920s
peak decade
48%
born in that decade
1920s
Peak decade

48% of everyone ever named Lb was born in this single decade.

1991
Single peak year

6 babies were named Lb in 1991 — its busiest year on record.

What the Data Says About Lb

The Social Security Administration has registered 21 babies named Lb between 1921 and 1991, spanning 71 consecutive years of U.S. birth records. As a boy's name, Lb currently falls outside the top 1,000 boys' names for 1991. The name reached its historical peak in 1991, when 6 babies received it in a single year.

Decade-level aggregation shows that Lb performed strongest in the 1920s, accumulating 10 births during that ten-year window. Across the 3 decades of recorded activity, Lb shows notable generational variation in parental adoption.

No etymological entry is currently available for Lb 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 21 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.

Lb at a glance

Last recorded 1991

Total births

21

Since 1921

71 years of records

Peak year

1991

6 births that year

Strongest decade: 1920s

Current rank

Unranked

Outside the modern top-1,000

As of 1991

Active since

1921

Recorded for 71 years

Last year on file: 1991

Lb popularity over time

Annual U.S. births registered with the Social Security Administration · 1991–1921

Last recorded 1991
Peak year (1991)
6
Annual births at peak — across 71 years of records
4.555.566.5 1991194319261921 5

Lb by decade

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

Peak: 1920s
Peak decade
1920s
10 births that decade — 48% of Lb's all-time total
1920s101940s51990s6

Frequently Asked Questions

How popular is the name Lb?
21 babies have been named Lb since 1921. It was last recorded in 1991. The peak year was 1991 with 6 births.
When was Lb most popular?
Lb was most popular in the 1920s decade with 10 total births. The single peak year was 1991.
How long has the name Lb been used?
Lb has been recorded in Social Security data since 1921, spanning 71 years of data through 1991.

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, 1921–1991 (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.