Cybil is a distinctive girls' name in United States, ranking #10255 in 2016 with 10 recorded births. The name reached its all-time peak in 2015 with 12 births ranking #9074. Since 1996, the popularity has increased by 100.0%. In 2016, approximately 1 in every 177,149 girls born was named Cybil. FALLING Recent data shows the name is currently falling.