What does Casidy mean and where does it come from?
Casidy is a variation of the name Cassidy, which comes from the Gaelic surname 'O'Cathasaigh,' meaning 'descendant of Cathasach.' The name was first recorded in Ireland and has gained popularity in the United States. Casidy is often associated with qualities such as courage and intelligence, making
Cultural significance
Casidy has been a cherished name across cultures, particularly in American-speaking communities, where it reflects values of english.
Peak popularity
Reached #4643 in 2001 — currently #1405 in the US.
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Related Reading
American-origin baby names with timeless appeal
Browse names →What middle names flow best with Casidy?
Casidy works best with short, strong middle names — one or two syllables keep the full name from becoming a mouthful
Casidy Grace
Most popular combo · classic
Casidy Rose
Floral · soft ending
Casidy Mae
Sweet · timeless
Casidy Claire
French influence · crisp
Casidy Jane
Literary · strong
Casidy Skye
Modern · airy feel
How popular is Casidy right now?
Holding steady — currently #1405 in the US out of 135.5k tracked names
| Year | US Rank | Births | vs Prior Year |
|---|
| 2023 | #1405 | 795 | ▲ up 5 · +3% births |
| 2022 | #1410 | 775 | ▲ up 5 · +4% births |
| 2021 | #1415 | 745 | ▲ up 8607 · +6673% births |
| 2010 | #10022 | 11 | ▼ down 2721 · -31% births |
| 2005 | #7301 | 16 | ▼ down 1681 · -20% births |
| 2000 | #5620 | 20 | ▲ up 554 · +33% births |
| 1995 | #6174 | 15 | ▲ up 3712 · +88% births |
| 1990 | #9886 | 8 | ▲ up 498 · +33% births |
| 1985 | #10384 | 6 | ▲ up 1473 · +20% births |
| 1980 | #11857 | 5 | — |
The story of Casidy
Casidy is a relatively modern name, first appearing in US records in 1980. With 346 total births recorded, Casidy remains relatively uncommon. The name has grown more popular over time, rising from #11857 in 1980 to #1405 in 2023.
Names that peaked alongside Casidy in 2001:
Casidy by decade
Casidy peaked in the 2000s. See all 2000s names →
| Decade | Births | |
|---|
| 1980s | 34 | |
| 1990s | 116 | |
| 2000s ★ | 145 | |
| 2010s | 51 | |
💎Casidy has only 346 total recorded births since 1980 — rarer than 99% of names in our database.
What are good nicknames for Casidy?
What names sound and feel like Casidy?
Based on sound, origin, and style — parents who love Casidy also consider these
Common questions about the name Casidy
What does the name Casidy mean?
Casidy means "English" — a name rooted in American tradition that carries both historical depth and timeless appeal. The meaning reflects values that have made this name endure across generations.
How popular is the name Casidy?
Casidy is currently a distinctive and less common name as a girl name in the US and is holding steady in popularity, a reliable classic that parents consistently choose.
What is the cultural origin of Casidy?
Casidy originates from American tradition. American names tend to carry strong cultural heritage and have spread across the world through migration, literature, and religion over centuries.
What sibling names go well with Casidy?
Casidy pairs beautifully with sibling names that share a similar American heritage or complement its melodic and flowing sound. Names with a similar vibe create a cohesive sibling set without matching too closely.
Is Casidy a common or rare name?
Casidy is a distinctive choice that balances familiarity with individuality. It strikes a balance between standing out and fitting in.