Cynthya is a distinctive girls' name in United States, ranking #12075 in 2000 with 7 recorded births. The name reached its all-time peak in 2001 with 17 births ranking #6388. Since 1996, the popularity has decreased by 36.4%. In 2000, approximately 1 in every 259,425 girls born was named Cynthya. STABLE Recent data shows the name is currently stable.