Kaia is a distinctive girls' name in England & Wales, ranking #1015 in 2011 with 34 recorded births. This places Kaia in the top 13% of ranked UK girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2025 with 173 births ranking #265. Since 1996, the popularity has increased by 466.7%. In 2011, approximately 1 in every 9,450 girls born was named Kaia. RISING Recent data shows the name is currently rising.
Kaia is more specific than the earlier broad draft suggested. Behind the Name treats it primarily as a Norwegian and Estonian diminutive of Katarina or Katariina, which places it in the wider Katherine family.
Modern international use has given Kaia a wider feel, but the sourced route on Behind the Name is Scandinavian and Baltic rather than a loose mix of unrelated meanings. That gives the name a clearer home tradition and helps tighten the entry.