Pure; daisy; or each of two
Kaja has multiple origins depending on the region. In Scandinavia and Poland, it is a diminutive of Karolina or Katarina, meaning 'pure'. In Estonian, it means 'echo', and in Slovene, it is a diminutive of names like Amalija.
About 16 girls were named Kaja in 2025.
Slovenian professional tennis player
Norwegian singer-songwriter
Polish actress and singer
US births per 5-year period, 1990–present (SSA data).
