Kaja is a distinctive girls' name in England & Wales, ranking #828 in 2021 with 43 recorded births. This places Kaja in the top 11% of ranked UK girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2018 with 61 births ranking #657. In 2021, approximately 1 in every 6,373 girls born was named Kaja. FALLING Recent data shows the name is currently falling.