Peak popularity
2010
Usually for
Boys
Trend
Holding steady
Holding steady.
Popularity of Kajus since 2004
Babies named Kajus per year in U.S. Social Security records. Raw births topped out in 2004, but relative to how few babies were recorded back then, Kajus's real moment was 2010.
Data table (by decade)
| Decade | Boys |
|---|---|
| 2000s | 6 |
| 2010s | 11 |
| 2020s | 0 |
“Kajus” around the world
Where Kajus lands in the latest official birth statistics abroad, matched to the U.S. spelling.
Ireland
3
babies in 2025
Sources: CSO Ireland (Ireland).
