Recent in Baby
When Baby Resists SolidsWhen Baby Resists SolidsBaby Biting TipsBaby Biting Tips5 Tips To Help Prevent Highchair Injuries5 Tips To Help Prevent Highchair InjuriesWhen Baby and Pet MeetWhen Baby and Pet MeetTreatments for ColicTreatments for ColicBaby Milestones – The First YearBaby Milestones – The First YearTips for Relieving Teething PainTips for Relieving Teething PainBenefits of Making Your Own Baby FoodBenefits of Making Your Own Baby Food

Home › Baby Names Directory › Cassadie

Cassadie

♀ Girl

How to Pronounce Cassadie

Pronounced KAS-uh-dee /ˈkæs.ə.di/Low

Meaning: Cassadie is a feminine respelling of Cassidy, an Irish surname anglicized from O Caiside, 'descendant of Caiside.' The base Caiside is linked to cas, 'curly' or 'curly-haired,' so the inherited sense is 'curly-headed one.' The -adie ending is a modern spelling choice that keeps the Cassidy sound while looking softer and more girlish.Low

In 30 seconds: Cassadie is a rare girl's name, a respelling of the Irish surname Cassidy ('curly-haired'). It surfaced with the surname-name trend and peaked around 1996 (said KAS-uh-dee).
💕 Browse more names
Origin LowIrish
MeaningCassadie is a feminine respelling of Cassidy, an Irish surname anglicized from O Caiside, 'descendant of Caiside.' The base Caiside is linked to cas, 'curly' or 'curly-haired,' so the inherited sense is 'curly-headed one.' The -adie ending is a modern spelling choice that keeps the Cassidy sound while looking softer and more girlish.
U.S. rank (2017)#16360 ↗ Rising
2017 U.S. births5 girls (0.00% of U.S. girls)
Peak year1996
Total births (all-time)≈ 174

Popularity in the U.S. · SSA data

peak 199619852017

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Cassadie is one of several creative spellings of Cassidy that appeared as the Irish surname crossed over to girls. Its root is O Caiside, 'descendant of Caiside,' from cas, 'curly-haired.' The -adie ending was chosen for looks and softness, so the name is Cassidy in a party dress rather than a new coinage.

Cassadie never became common, given to only about fourteen girls a year around 1996 during the height of the surname-as-first-name fashion. A girl named Cassadie then is in her late twenties today, a peer of the many Cassidys and Kassidys of that moment.

Did you know? Behind Cassadie sits the Irish cas, 'curly,' so the name literally points to curly hair, a trait that once earned a whole family the Caiside byname.
Overall data confidence 40%
References - Cassadie — Respelling of Cassidy < Irish O Caiside, cas 'curly-haired'; surname-name trend; peaked 1996.

Variations

CassidyCassadyKassidyKassidee

Nicknames

CassCassie

Famous Bearers

  • Famous bearers coming soon.

If you like Cassadie…

Cassidy— the standard Irish surname-name it respells
Cassady— a closely related spelling of the same name
Kassidy— the popular K- variant of the trend
Cassie— the short pet form it shares

Explore names like Cassadie

By themevariantirishsurname

All themes →All meanings →All origins →

Frequently Asked

What does the name Cassadie mean?

It is a respelling of Cassidy, an Irish surname from O Caiside, tied to cas, 'curly-haired.'

How do you pronounce Cassadie?

It is said KAS-uh-dee /ˈkæs.ə.di/ - three syllables, stress on the first.

Is Cassadie a boy or girl name?

Cassadie is used as a girl's name.

How popular is Cassadie?

It was always rare, given to only about fourteen girls a year at its peak in the mid-nineteen-nineties.

💬 Ask Nia