Girl Name · Irish Origin
Casie
Last reviewed: June 2026
Casie is a girl baby name of Irish origin, meaning "Alert, watchful". It currently sits in the Rare tier of US baby names for 2026, and parents who love Casie often also consider Cassie.
Names like Casie
Frequently asked about Casie
What does the name Casie mean?
Casie means "Alert, watchful" and is of Irish origin.
What is the origin of Casie?
Casie originates in Irish naming tradition.
How do you pronounce Casie?
Casie has 5 letters and is most commonly stressed on the first syllable.
Is Casie a boy's or girl's name?
Casie is primarily used as a girl's name in US records.
How popular is Casie in 2026?
In our 2026 popularity tracker, Casie sits in the Rare tier — an uncommon, standout choice.
What names are similar to Casie?
Names that share Casie's sound and style include Cassie, Casey, Chuckie, Cassi, Casi.