Cassidie
Girls' nameMeaning not yet documented
Cassidie has been given to 464 babies in the U.S. since 1981. 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 1998, with 31 recorded.
Babies named Cassidie, 2017
1 in 447,000
Cassidie 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
How common is Cassidie?
Cassidie had fewer than 5 recorded uses in 2025, so these figures use 2017, the last year it was published.
- Among all babies, 2017
- 1 in 447,000
- 8 of 3,577,106 births
- Among girls only
- 1 in 216,000
- <0.01% of girls
- Rank, 2017
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 309,934 kids
- Even odds of a second one
Where Cassidie sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2017 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 309,934 children born in 2017 and it's an even bet that one of them is another Cassidie. In a class of 30 the chance is Under 1%.
When Cassidies were born
Half of everyone ever recorded as Cassidie was born before 2000 — so the typical Cassidie is around 25 today.
- Biggest decade
- 2000s
- 40.1% of all use
- Born in the last 25 years
- 86.9%
- A modern name
- Recorded since 1950
- 464
- People you could plausibly meet
2000s — 40.1% of all recorded uses (186).
Is Cassidie 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 1998 (31)
- Years since peak
- 27
- Years
- Year-to-year steadiness
- Volatile
- 28.0% average annual change
Spellings of Cassidie
Cassidie is not the most common spelling — Cassidy is, with 54.6% against Cassidie's 0.42%.
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 Cassidie is used
Across 1910–2025, Cassidie was most concentrated in California — about 1 in — girls, against 1 in 2,668,796 across all states with data.
Most concentrated
- 1California1 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. Cassidie has too little recent state data to map, so this covers all years from 1910.
Cassidie around the world
Where Cassidie 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 & Wales2009–2009#5,556in 2009
- France1999–2022#6,240in 2022
- South Australia1995–1995#712in 1995
Popularity data from Office for National Statistics, Institut national de la statistique et des études économiques and Consumer and Business Services (South Australia). ONS data under Open Government Licence v3.0. INSEE data under Licence Ouverte / Etalab 2.0. CBS SA data under CC BY 4.0.
Cassidie by the numbers
The raw record for each sex the name is used for.
Names similar to Cassidie
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Cassidie
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.