Cassidy
KAS-i-dee
The Story of Cassidy
From a proud Irish clan known for their cleverness, this name carries an echo of bright wit and a spirited independence that now calls to you.
Cassidy originates from the Irish surname Ó Caiside, meaning 'descendant of Caiside.' The original Gaelic personal name Caiside is thought to mean 'clever' or perhaps 'curly-haired.' This surname was common in Ireland, particularly in the province of Ulster, and as surnames transitioned into given names, Cassidy gained popularity in the late 20th century.
When you say 'Cassidy,' it feels bright and spirited, like a flash of quick wit. It’s a name that conjures a sense of independent charm and a friendly spark. Imagining your daughter’s laughter, you might hear it in the sound of her name, a joyful echo of her own spirited nature. Writing Cassidy on her birth announcement feels like embracing that lively, clever essence.
What It Means
“Cassidy is of Irish origin, derived from the Gaelic surname Ó Caiside, meaning 'descendant of Caiside'. Caiside means 'clever' or 'curly-haired'.”
Nickname Watch
Kids pick up nicknames whether parents plan for it or not. Make sure you love the short forms too.
AI Features
Unlock Cassidy’s Full Story
AI consultant · Sibling matches · Cultural deep-dive · Compatibility scores
🔒 No credit card needed
Numerology
The Idealist
Compassionate, humanitarian, and visionary. Names vibrating at 9 carry universal love.
Famous Namesakes
Cassidy Wolf
American model and beauty queen
Butch Cassidy
American outlaw and bank robber
Personality Traits
Peak Year
#3,449 in 1999
Total Births
63,963
First Recorded
1968
More Names Like Cassidy
View allNora
Irish
Meaning
A short form of Honora or Eleanor, meaning 'honor' or 'light'.
Maeve
Irish
Meaning
An Irish name derived from the Gaelic name 'Medb,' meaning 'intoxicating' or 'she who intoxicates'. In Irish legend, Medb was a warrior queen.
Kennedy
Irish
Meaning
Kennedy is an Irish surname-turned-first name, derived from the Gaelic name Cinnéidigh, meaning 'helmeted head' or 'misshapen head'.
Save Cassidy to your favorites list