Rising since 2004, #800 for boys today.
Popularity of Kaisen since 2004
Babies named Kaisen per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 2000s | 129 |
| 2010s | 1,023 |
| 2020s | 1,473 |
Meaning & origin
Kaisen first entered U.S. naming records in 2004 and has seen a consistent upward trend. Its peak year so far was 2025, when it ranked 800th nationally with about 1 in 5,492 boys receiving the name. The name is most frequently given in Mississippi, West Virginia, and Alabama, reflecting a regional preference for modern-sounding names with the -sen ending. As a rising choice, Kaisen exemplifies the broader popularity of invented or respelled names that share phonetic elements with established favorites like Kason and Kaysen.
Kaisen is a modern coinage, first recorded in the United States in 2004. It likely arose as a variant of names like Kason or Cason, or as an elaboration of the sound trend seen in names such as Kaysen. Its use has been steadily rising, particularly in southern states.
Where Kaisen is most popular
Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.
Nicknames & variants
Nicknames: Kai
Sibling names for Kaisen
Names that share Kaisen's style, for a brother or sister.
