Cybil is a distinctive girls' name in United States, ranking #8584 in 2021 with 12 recorded births. The name reached its all-time peak in 2015 with 12 births ranking #9074. Since 1996, the popularity has increased by 140.0%. In 2021, approximately 1 in every 136,643 girls born was named Cybil. FALLING Recent data shows the name is currently falling.