Ka is a distinctive girls' name in United States, ranking #8848 in 2000 with 11 recorded births. The name reached its all-time peak in 1996 with 24 births ranking #4376. Since 1996, the popularity has decreased by 54.2%. In 2000, approximately 1 in every 165,088 girls born was named Ka. FALLING Recent data shows the name is currently falling.