Recorded 1948–2023 Boys' name Peak 1999 279 births

Lief — boys' name

279 babies named Lief in U.S. Social Security records since 1948, with the highest year being 1999. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1940s61950s161960s431970s661980s461990s382000s312010s142020s19
1970s
Peak decade

24% of everyone ever named Lief was born in this single decade.

1999
Single peak year

12 babies were named Lief in 1999 — its busiest year on record.

What the Data Says About Lief

The Social Security Administration has registered 279 babies named Lief between 1948 and 2023, spanning 76 consecutive years of U.S. birth records. As a boy's name, Lief currently falls outside the top 1,000 boys' names for 2023. The name reached its historical peak in 1999, when 12 babies received it in a single year.

Decade-level aggregation shows that Lief performed strongest in the 1970s, accumulating 66 births during that ten-year window. Across the 9 decades of recorded activity, Lief shows a clear decline from its mid-century high.

No etymological entry is currently available for Lief 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 279 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.

Lief at a glance

Last recorded 2023

Total births

279

Since 1948

76 years of records

Peak year

1999

12 births that year

Strongest decade: 1970s

Current rank

Unranked

Outside the modern top-1,000

As of 2023

Active since

1948

Recorded for 76 years

Last year on file: 2023

Lief popularity over time

Annual U.S. births registered with the Social Security Administration · 2023–1948

Last recorded 2023
Peak year (1999)
12
Annual births at peak — across 76 years of records
468101214 202320071998198719791973196619551948 6

Lief by decade

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

Peak: 1970s
Peak decade
1970s
66 births that decade — 24% of Lief's all-time total
1940s61950s161960s431970s661980s461990s382000s312010s142020s19

Frequently Asked Questions

How popular is the name Lief?
279 babies have been named Lief since 1948. It was last recorded in 2023. The peak year was 1999 with 12 births.
When was Lief most popular?
Lief was most popular in the 1970s decade with 66 total births. The single peak year was 1999.
How long has the name Lief been used?
Lief has been recorded in Social Security data since 1948, spanning 76 years of data through 2023.
What names are similar to Lief?
Names with a similar sound or spelling include Liem, Liev, Lieutenant, 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, 1948–2023 (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.