Cyndi is a distinctive girls' name in United States, ranking #8834 in 2010 with 13 recorded births. The name reached its all-time peak in 2000 with 27 births ranking #4434. Since 1996, the popularity has decreased by 43.5%. In 2010, approximately 1 in every 136,717 girls born was named Cyndi. FALLING Recent data shows the name is currently falling.