Name meaning & stats
Kai
Kai means “sea” (Germanic origin). 78,698 US babies since 1940, peak 2022.
What it means
“sea”
GermanicWell documented
In US birth records
Peak year: 2022
78,698 US babies were named Kai between 1940 and 2025.
Careers
Not enough notable people named Kai (or its spelling family) to say anything reliable yet. That's a gap in the data, not the name.
Spelling family
The most common spelling: 93% of the family
Names that sound the same, grouped by Heyotag. Share of US babies since 1940.
Name twins (peaked around 2022)