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Cassidy

Girl name · Celtic · Irish

Meaningcurly-haired · Irish

US rank
#541
Syllables
3
Peak
#99 in 1999

558 babies were named Cassidy in the US in 2025. It has dropped 130 places in five years.

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US births per million girls, 1969–2025

01,0002,000196920002025

US births per million boys, 1968–2025

050100196820002025

Most popular states (2025)

PA rank #294CO rank #317NJ rank #348MI rank #374VA rank #413

Similar names

Popularity: U.S. Social Security Administration (babies with 5+ births per year).

Did you know?

A few things about Cassidy you might not know, from US birth records and Wikipedia. Handy for convincing a partner, or a grandparent.

Cassidy Freeman

Famous Cassidy

Cassidy Freeman

American actress and singer

Choose Cassidy and your child shares a first name with Cassidy Freeman, an American actress and singer. A ready-made answer when someone asks “Cassidy, like who?” Cassidy Freeman's Wikipedia article is available in 26 languages, a good sign of just how widely known they are.

Read about Cassidy Freeman on Wikipedia (opens in a new tab)

Photo: John Manard, CC BY-SA 4.0 (opens in a new tab), via Wikimedia Commons

  • How commonAbout 1 in every 2,880 baby girls born in the US in 2025 was named Cassidy, 558 babies in all. In a typical school of 500 kids, your Cassidy would very likely be the only one.
  • HistoryCassidy first shows up in US birth records in 1968, the first year at least 5 babies got it. It has been in use for 57 years since.
  • Best yearIt was far more popular in 1999, when it ranked #99. Today it's #541, so it could be due a comeback.
  • Then vs nowCassidy was 5.0× more common in 2000 than it is today. In 2000 it was given to about 1 in 574 baby girls; in 2025, about 1 in 2,880.
  • TrendCassidy has slipped 130 places over the last five years and now sits at #541. Good news if you want a familiar name that fewer kids will share.
  • Where it's lovedCassidy is most popular in Pennsylvania, where it ranks #294, followed by Colorado (#317) and New Jersey (#348). It's in the top 1,000 in 30 states.
  • MeaningIn Irish, Cassidy means “curly-haired”. Our records link it to Celtic and Irish roots.

About the name Cassidy

Cassidy is a girl name of Celtic and Irish origin meaning “curly-haired”. It has 7 letters and 3 syllables, starting with C and ending in “-idy”. US birth records list Cassidy for girls from 1969 to 2025, in 57 of those 57 years. Its best year was 1999, when it ranked #99 among girl names. In 2025 it ranked #541, with 558 babies.

Origin:Celtic namesIrish names

Cassidy for girls, by decade
DecadeBabies per millionAbout 1 in
1960s3.0333,333 girls
1970s3429,240 girls
1980s1935,175 girls
1990s1,165859 girls
2000s1,152868 girls
2010s6411,561 girls
2020s4012,492 girls
Cassidy for boys, by decade
DecadeBabies per millionAbout 1 in
1960s2.8350,877 boys
1970s2246,490 boys
1980s6116,265 boys
1990s4621,758 boys
2000s2441,667 boys
2010s3033,887 boys
2020s2934,033 boys

More Celtic girl names

Questions about the name Cassidy

What does the name Cassidy mean?

Cassidy means “curly-haired” in Irish.

What is the origin of the name Cassidy?

Cassidy has Celtic, Irish roots in our records. Other Celtic names include Evelyn, Isla, Riley.

Is Cassidy a boy or girl name?

Cassidy is a girl name, though a few boys get it too.

How popular is the name Cassidy?

Cassidy ranked #541 for US girls in 2025, given to 558 babies. Its best year was 1999 (#99).