Katja is a distinctive girls' name in United States, ranking #10641 in 2024 with 9 recorded births. The name reached its all-time peak in 1998 with 48 births ranking #2785. Since 1996, the popularity has decreased by 47.1%. In 2024, approximately 1 in every 179,243 girls born was named Katja. FALLING Recent data shows the name is currently falling.