Ka is a distinctive girls' name in United States, ranking #10626 in 2002 with 9 recorded births. The name reached its all-time peak in 1996 with 24 births ranking #4376. Since 1996, the popularity has decreased by 62.5%. In 2002, approximately 1 in every 199,647 girls born was named Ka. FALLING Recent data shows the name is currently falling.