Cyndi is a distinctive girls' name in United States, ranking #8726 in 1998 with 10 recorded births. The name reached its all-time peak in 2000 with 27 births ranking #4434. Since 1996, the popularity has decreased by 56.5%. In 1998, approximately 1 in every 176,689 girls born was named Cyndi. FALLING Recent data shows the name is currently falling.