Ka is a distinctive girls' name in United States, ranking #15016 in 2004 with 6 recorded births. The name reached its all-time peak in 1996 with 24 births ranking #4376. Since 1996, the popularity has decreased by 75.0%. In 2004, approximately 1 in every 306,020 girls born was named Ka. FALLING Recent data shows the name is currently falling.