Cassidy is a distinctive choice, ranked #807 in 2025. Your child is likely to be the only Cassidy in their class.
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UK Rank 2025
#807
US Rank #541
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About the Name Cassidy
Cassidy has seen a notable decline in recent years, dropping 139 places in five years. It was most popular in 2006 at #580 — parents choosing it today are making a deliberately counter-trend decision. The name has been a consistent presence in UK records since 1996.
Cassidy is uncommon in the UK, so your child is very likely to be the only Cassidy in their class.
In the US it ranks even higher at #476, where it enjoys a particularly strong following.
⭐ Famous People Named Cassidy
Christopher Cassidy — Christopher John Cassidy is an American retired NASA astronaut and United States Navy SEAL.
Bruce Cassidy — Bruce James Cassidy, nicknamed "Butch", is a Canadian professional ice hockey coach and former player who most recently was the head coach for the Vegas Golden Knights of the National Hockey League (NHL).
Bill Cassidy — William Morgan Cassidy is an American politician and physician who is the senior United States senator from Louisiana, a seat he has held since 2015.
Biographical summaries are shortened from Wikipedia and are used under the CC BY-SA 4.0 licence; those summaries remain available under that same licence.
Frequently Asked Questions
Common questions about the name Cassidy
Unlikely. With around 45 UK babies named Cassidy per year, your child will almost certainly be the only Cassidy in their class, and possibly the only one in the whole school.
Cassidy is declining: down 170 places since 2020, to #807 in 2025. It peaked at #580 in 2006.
Cassidy is more popular in the US (#476) than in the UK (#776). Names with strong rankings in both countries tend to have broad cross-cultural appeal, working well for international families or those with ties to both nations.
Notable people named Cassidy include: Christopher Cassidy, Bruce Cassidy and Bill Cassidy. Short summaries for each appear below.
Cassidy appears in the US top 500 at #476 in 2024 — moderately popular in America, though less so than in the UK.
45
UK babies named Cassidy (2025)
< 1
Expected classmates with this name (class of 28)
~0.0
In a school of 600
↓ 170 places
Rank change (last 5 years)
🏫 Who else is in the room?
In a typical UK class of 28, highlighted children share the name Cassidy
Almost certainly the only Cassidy in the class
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UK Popularity (1996–2025)
Rank and birth count · ONS official data
US Popularity (2020–2025)
Rank · SSA official data
✨ Similar names to Cassidy
Names with a similar style — each with their own classroom story
Bruce James Cassidy, nicknamed "Butch", is a Canadian professional ice hockey coach and former player who most recently was the head coach for the Vegas Golden Knights of the National Hockey League (NHL).
Cassidy Jacqueline Hutchinson is a former White House aide who served as assistant to Chief of Staff Mark Meadows during the first Trump administration.