Cassey
UnisexGirls' nameBoys' nameMeaning not yet documented
Cassey has been given to 1,846 babies in the U.S. since 1968. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 1986, with 98 recorded. It's used for both sexes: 92% girls, 8% boys all-time.
Babies named Cassey, 2021
1 in 484,000
Cassey over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
Girls or boys — Cassey over time
In 2021, Cassey went to 100% girls and 0% boys.
A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.
How common is Cassey?
Cassey had fewer than 5 recorded uses in 2025, so these figures use 2021, the last year it was published.
- Among all babies, 2021
- 1 in 484,000
- 7 of 3,389,958 births
- Among girls only
- 1 in 234,000
- <0.01% of girls
- Rank, 2021
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 335,678 kids
- Even odds of a second one
Where Cassey sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2021 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 335,678 children born in 2021 and it's an even bet that one of them is another Cassey. In a class of 30 the chance is Under 1%.
When Casseys were born
Half of everyone ever recorded as Cassey was born before 1989 — so the typical Cassey is around 36 today.
- Biggest decade
- 1980s
- 43.4% of all use
- Born in the last 25 years
- 24.6%
- Spread across generations
- Recorded since 1950
- 1,691
- People you could plausibly meet
1980s — 43.4% of all recorded uses (734).
Is Cassey rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- —
- Not ranked then
- Rank vs 5 years ago
- New entry
- Not ranked then
- Rank vs 10 years ago
- —
- Not ranked then
- Births vs 10 years ago
- —
- Not published both years
- Share of its own peak
- 0%
- Peak was 1986 (98)
- Years since peak
- 39
- Years
- Year-to-year steadiness
- Volatile
- 34.6% average annual change
Spellings of Cassey
Cassey is not the most common spelling — Casey is, with 27.5% against Cassey's 0.59%.
Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.
Where Cassey is used
Across 1910–2025, Cassey was most concentrated in California — about 1 in 100,000 girls, against 1 in 240,899 across all states with data. It was least common in Tennessee (1 in —).
Shading is the share of that state's recorded girls given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Cassey has too little recent state data to map, so this covers all years from 1910.
Cassey around the world
Where Cassey ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.
- England & Wales1996–2012#5,876in 2012
- Scotland1996–1996#611in 1996
- Canada1992–2016#3,204in 2016
- South Australia1991–2000#510in 2000
Popularity data from Office for National Statistics, National Records of Scotland, Statistics Canada and Consumer and Business Services (South Australia). ONS, NRS data under Open Government Licence v3.0. StatCan data under Statistics Canada Open Licence. CBS SA data under CC BY 4.0.
Cassey by the numbers
The raw record for each sex the name is used for.
As a girl's name
Names similar to Cassey
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Cassey
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.