"curly-haired, descendant of Caiside"
Origin: Irish Gaelic
Language: Irish
Kassidy
Does Kassidy flow with your last name?
Irish curls meet Wild West spirit — effortlessly cool
Irish
American
English
Modern
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Unique
Earthy
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The Story of Kassidy
Kassidy is a variant spelling of Cassidy, which derives from the Irish Gaelic surname Ó Caiside, meaning 'descendant of Caiside.' The personal name Caiside is thought to mean 'curly-haired' from the root 'cas' (curly). Like many Irish surnames, Cassidy transitioned into first-name use in America during the 20th century as part of the trend of using Celtic surnames as given names, a pattern especially popular for girls.
Cassidy surged as a girl's name in the 1990s and 2000s in the United States, partly inspired by the legendary American outlaw Butch Cassidy and the beloved 1969 film. The K-spelling Kassidy emerged as a creative variant for parents wanting distinction. Various TV characters named Cassidy also boosted its popularity throughout this period.
Cassidy is deeply connected to American Western mythology through the outlaw Butch Cassidy (born Robert LeRoy Parker). As a girl's name, it represents the American tradition of reclaiming surname names — particularly Western-sounding ones — as first names, investing them with adventurous, free-spirited energy.
Historical Record
Kassidy first appeared in US Social Security records in 1975.
Over 21,037 babies have been named Kassidy in the United States since SSA records began.
Today, Kassidy is past its peak , currently ranked #980 for girl names in the US .
Fun Facts
- Butch Cassidy's famous Wild Bunch gang included Etta Place, another name being enriched in this batch
- The name Cassidy appeared as a character name in multiple popular 1990s-2000s TV shows, cementing it as a generation-defining name
Kassidy in Other Languages
Irish
Caiside
English
Cassidy/Kassidy
Popularity Over Time
#980
Current Rank
Stable
Trend
Peaked 2000
Based on SSA data 1880–present
Year-by-year popularity data will be available soon.
Famous People Named Kassidy
C
Cassidy (Cassidy Bernall)
Other
1981
Columbine High School student whose story became widely publicized after the 1999 tragedy
B
Butch Cassidy
Other
1866
American outlaw and leader of the Wild Bunch gang, famous for train and bank robberies across the American West
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Compare Kassidy with:
Quick Facts
- Gender
- Girl
- Syllables
- 3
- Popularity Rank
- #980
- Total SSA Count
- 265
- Cultural Origins
- Irish American English
- Pronunciation
- Easy
- Formality
- Casual
- Cross-Cultural Ease
- Moderate
Alternative Spellings
Common Nicknames
Kass
Kassie
Middle Name Ideas
Suggested pairings based on syllable flow and style
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Timeless choice, smooth 3-1 syllable flow
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Timeless choice, smooth 3-1 syllable flow
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Timeless choice, smooth 3-1 syllable flow
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Timeless choice, smooth 3-1 syllable flow
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Timeless choice, English heritage match, balanced 3-2 syllable flow
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Distinctive pick, smooth 3-1 syllable flow
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Timeless choice, smooth 3-1 syllable flow
-
Timeless choice, smooth 3-1 syllable flow
-
Timeless choice, smooth 3-1 syllable flow
-
Classic pairing, Irish heritage match, balanced 3-2 syllable flow
Middle Names
Middle Names for Kassidy
5 name pairings with syllable flow tips
Sibling Names
Sibling Match
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Also a Boy Name
Kassidy is also used as a boy name, ranked #21607.
View Kassidy as a boy name →Similar Names
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Frequently Asked Questions About Kassidy
What does the name Kassidy mean?
"curly-haired, descendant of Caiside" (from Irish Gaelic). Kassidy is a variant spelling of Cassidy, which derives from the Irish Gaelic surname Ó Caiside, meaning 'descendant of Caiside.' The personal name Caiside is thought to mean 'curly-haired' from the root 'cas' (curly). Like many Irish surnames, Cassidy transitioned into first-name use in America during the 20th century as part of the trend of using Celtic surnames as given names, a pattern especially popular for girls.
What is the origin of the name Kassidy?
Kassidy has Irish Gaelic, Irish, American, and English origins. In Irish Gaelic, it means "curly-haired, descendant of Caiside".
Is Kassidy a boy or girl name?
Kassidy is used as both a girl and boy name. As a girl name, it is ranked #980. As a boy name, it is ranked #21607. Kassidy is more commonly used as a girl name.
How popular is the name Kassidy?
Kassidy is currently ranked #980 in popularity for girl names in the United States.
What are common nicknames for Kassidy?
Common nicknames for Kassidy include Kass and Kassie.
What are good middle names for Kassidy?
Popular middle name pairings include Kassidy Grace, Kassidy Marie, Kassidy Jane, Kassidy Lee, and Kassidy Nicole.
What are good sibling names for Kassidy?
Names that pair well with Kassidy as siblings include Harley, Brynn, Declan, Logan, and Finley.
How many syllables does Kassidy have?
Kassidy has 3 syllables, making it distinctive and rhythmic.
Is Kassidy a common or rare name?
Kassidy is moderately common, ranked #980 for girls in the US. You will encounter it, but it stands out.
What girl names are similar to Kassidy?
About the Name Kassidy
Kassidy is a girl name with Irish, American, and English origins . The name means "curly-haired, descendant of Caiside" in Irish Gaelic .
Is Kassidy a boy or girl name? Kassidy is used as both a girl and boy name. As a girl name, it ranks #980 in popularity. As a boy name, it ranks #21,607. Kassidy is more commonly used as a girl name.
Kassidy is currently ranked #980 in popularity for girl names in the United States.
The name Kassidy has 3 syllables, making it distinctive and memorable.
Common nicknames for Kassidy include Kass and Kassie. These shorter forms provide casual alternatives while keeping the elegance of the full name.
Alternative spellings of Kassidy include Kassandra, Kassie . Each spelling variation gives the name a slightly different character while preserving its sound and meaning.
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Sources
- U.S. Social Security Administration — National Baby Names Data (popularity rankings and historical trends)
- Behind the Name (etymology and meaning research)
- NamingEverything editorial research and analysis