NameInClass Baby name predictor
👦 Boy's name 📊 Moderately Common UK #78

Kai

Kai is a well-established choice, ranked #78 in 2025. With 672 babies named Kai in 2025, meeting another Kai at school is a real possibility.

📊
UK Rank 2025
#78
US Rank #93
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About the Name Kai

Kai has seen a notable decline in recent years, dropping 1727 places in five years. It was most popular in 2014 at #77 — parents choosing it today are making a deliberately counter-trend decision. The name has been a consistent presence in UK records since 1996. It has broken into the UK top 100 on 3 occasions, signalling genuine mainstream interest.

Kai is a very popular name in the UK — yet a class of 28 is small enough that your child will very likely be the only Kai on the register.

In the US it ranks even higher at #76, where it enjoys a particularly strong following.

⭐ Famous People Named Kai

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 Kai

Possibly. With around 672 UK babies named Kai per year, your child may well come across another Kai at school, though sharing a class is less likely.
Kai has been fairly steady, ranked #78 in 2025 against #103 in 2020. Its best recorded position was #56 in 2003.
Kai is more popular in the US (#76) than in the UK (#4844). 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 Kai include: Kai Cenat, Kai Greene and Kai Bird. Short summaries for each appear below.
Kai ranks #76 in the US (2024), making it comfortably inside the American top 100. It's well-liked on both sides of the Atlantic.
672
UK babies named Kai (2025)
< 1
Expected classmates with this name (class of 28)
< 1
In a school of 600
↑ 25 places
Rank change (last 5 years)

🏫 Who else is in the room?

In a typical UK class of 28, highlighted children share the name Kai

Almost certainly the only Kai 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 Kai

Names with a similar style — each with their own classroom story

Jack
UK #24
Jake
UK #235
Leo
UK #3
Max
UK #48
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About the Name Kai

Meaning
various

Famous People Named Kai

Notable people who share this name, from history to the present day. See full list on Wikipedia

Kai Cenat
Kai Carlo Cenat III is an American online streamer, YouTuber, and internet personality who specializes in comedic live streams and videos.
Kai Greene
Leslie Kai Greene is an American professional bodybuilder, actor, and artist.
Kai Bird
Kai Bird is an American author and columnist, best known for his works on the atomic bombings of Hiroshima and Nagasaki, United States-Middle East political relations, and his biographies of political figures.
Kai Ryssdal
Kai Ryssdal is an American radio journalist and the host of Marketplace, a business program that airs weekdays on U.S. public radio stations.
Carole Kai
Carole Kai is an entertainer (singer and pianist), recording artist, and philanthropist from Hawaii.
Kai Trump
Kai Madison Trump is an American social media personality.
Kai Ewans
Kai Peter Anthon Ewans was a Danish and American jazz reedist.
Kai the Hitchhiker
Caleb Lawrence McGillvary, also known as Kai, is a Canadian man who first became known from the internet viral video "Kai the Hatchet-Wielding Hitchhiker", which featured him recounting a crime he witnessed while hitchhiking.

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