Earth or pure
In Scandinavian contexts, Kaj is a variant of Kai, often linked to the Latin name Gaius meaning 'to rejoice'. In some Frisian and Estonian traditions, it is also associated with the word for 'earth' or 'pure'.
About 5 boys were named Kaj in 2025.
US births per 5-year period, 1990–present (SSA data).
Influential Finnish designer and 'conscience of Finnish design'
Danish playwright and Lutheran pastor
The young protagonist in Hans Christian Andersen's fairy tale · The Snow Queen
