Kass
Kass was last recorded in 2021, when 5 babies were given it; 70 Americans have been recorded with it between 1984 and 2021 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Kass by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Kass mean?
Wiktionary, English section
Kass is “a diminutive of the female given name Kassandra.”
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Kass?
Unranked in 2025
Its last boys’ rank on record is #13,107, in 2021; SSA lists a name only in years with 5 or more births.
9 babies in 2009, the peak
Kass peaked in 2009, when 9 boys were given it, #8,671 among boys’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2021 | 5 | #13,107 | 2.9 |
| 2019 | 5 | #13,147 | 2.8 |
| 2017 | 5 | #13,259 | 2.7 |
| 2014 | 5 | #13,082 | 2.6 |
| 2013 | 8 | #9,232 | 4.2 |
| 2009 | 9 | #8,671 | 4.5 |
| 2005 | 5 | #12,392 | 2.5 |
| 2003 | 5 | #11,840 | 2.5 |
| 2000 | 5 | #11,300 | 2.5 |
| 1990 | 5 | #8,809 | 2.4 |
Every recorded year (12)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 1989 | 8 | #5,924 | 4.0 |
| 1984 | 5 | #6,836 | 2.8 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Kass a boy’s or a girl’s name?
Kass has been recorded only for boys: SSA lists no girls with the name in 12 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Kass: the SSA national file counts each sex separately.
How many people are named Kass, and how old are they?
An estimated 68 Americans named Kass and born in the U.S. are alive in 2026, too few to state an age range. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 299 people named Kass (130 women and girls, 169 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 64 born in the U.S. The Census count is 4.7 times that prediction. Possible reasons: the Census records the name people give, which for many is the short form Kass rather than the name on their birth record, and it counts people born abroad, whom SSA’s files leave out.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Names spelled alike
Of these 7 names spelled alike, given to 4,965 babies since 1880, Kass is the seventh most given (1.4% of them). In 2025 none of their 290 babies recorded by SSA was a Kass (SSA lists a name only with 5 or more babies of one sex).
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Kass
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Kass and names like it
- Compare Kass and KaiusBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sKass peaked in 2009.
- The top names of 2009The year the most babies were named Kass.
- Names starting with KMost given first.