Cassidi
Girls' nameMeaning not yet documented
Cassidi has been given to 863 babies in the U.S. since 1977. 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 1999, with 51 recorded.
Babies named Cassidi, 2020
1 in 279,000
Cassidi 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.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 Cassidi?
Cassidi had fewer than 5 recorded uses in 2025, so these figures use 2020, the last year it was published.
- Among all babies, 2020
- 1 in 279,000
- 12 of 3,342,313 births
- Among girls only
- 1 in 135,000
- <0.01% of girls
- Rank, 2020
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 193,061 kids
- Even odds of a second one
Where Cassidi sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2020 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 193,061 children born in 2020 and it's an even bet that one of them is another Cassidi. In a class of 30 the chance is Under 1%.
When Cassidis were born
Half of everyone ever recorded as Cassidi was born before 1999 — so the typical Cassidi is around 26 today.
- Biggest decade
- 1990s
- 34.8% of all use
- Born in the last 25 years
- 67.3%
- A modern name
- Recorded since 1950
- 863
- People you could plausibly meet
1990s — 34.8% of all recorded uses (300).
Is Cassidi 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 1999 (51)
- Years since peak
- 26
- Years
- Year-to-year steadiness
- Volatile
- 34.3% average annual change
Spellings of Cassidi
Cassidi is not the most common spelling — Cassidy is, with 43.2% against Cassidi's 0.61%.
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 Cassidi is used
Across 1910–2025, Cassidi was most concentrated in California — about 1 in — girls, against 1 in 565,865 across all states with data. It was least common in Utah (1 in —).
Most concentrated
- 1California1 in —
- 2Florida1 in —
- 3North Carolina1 in —
- 4Texas1 in —
- 5Utah1 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. Cassidi has too little recent state data to map, so this covers all years from 1910.
Cassidi around the world
Where Cassidi 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.
- France2001–2004#4,865in 2004
- South Australia2002–2002#730in 2002
Popularity data from Institut national de la statistique et des études économiques and Consumer and Business Services (South Australia). INSEE data under Licence Ouverte / Etalab 2.0. CBS SA data under CC BY 4.0.
Cassidi by the numbers
The raw record for each sex the name is used for.
Names similar to Cassidi
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Cassidi
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.