Recorded 1984–2021 Boys' name Peak 2009 70 births

Kass — boys' name

70 babies named Kass in U.S. Social Security records since 1984, with the highest year being 2009. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1980s131990s52000s242010s232020s5

The verdict

70 boys have been named Kass since 1984, peaking in the 2000s, last recorded in 2021.

70
total births
1984–2021
years on record
2000s
peak decade
34%
born in that decade
2000s
Peak decade

34% of everyone ever named Kass was born in this single decade.

2009
Single peak year

9 babies were named Kass in 2009 — its busiest year on record.

What the Data Says About Kass

The Social Security Administration has registered 70 babies named Kass between 1984 and 2021, spanning 38 consecutive years of U.S. birth records. As a boy's name, Kass currently falls outside the top 1,000 boys' names for 2021. The name reached its historical peak in 2009, when 9 babies received it in a single year.

Decade-level aggregation shows that Kass performed strongest in the 2000s, accumulating 24 births during that ten-year window. Across the 5 decades of recorded activity, Kass shows a clear decline from its mid-century high.

No etymological entry is currently available for Kass 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 70 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.

Kass at a glance

Last recorded 2021

Total births

70

Since 1984

38 years of records

Peak year

2009

9 births that year

Strongest decade: 2000s

Current rank

Unranked

Outside the modern top-1,000

As of 2021

Active since

1984

Recorded for 38 years

Last year on file: 2021

Kass popularity over time

Annual U.S. births registered with the Social Security Administration · 2021–1984

Last recorded 2021
Peak year (2009)
9
Annual births at peak — across 38 years of records
45678910 202120192017201420132009200520032000199019891984 5

Kass by decade

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

Peak: 2000s
Peak decade
2000s
24 births that decade — 34% of Kass's all-time total
1980s131990s52000s242010s232020s5

Frequently Asked Questions

How popular is the name Kass?
70 babies have been named Kass since 1984. It was last recorded in 2021. The peak year was 2009 with 9 births.
When was Kass most popular?
Kass was most popular in the 2000s decade with 24 total births. The single peak year was 2009.
How long has the name Kass been used?
Kass has been recorded in Social Security data since 1984, spanning 38 years of data through 2021.
What names are similar to Kass?
Names with a similar sound or spelling include Kash, Kason, Kasey, Kasen, 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, 1984–2021 (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.