Cyndi is a distinctive girls' name in United States, ranking #8349 in 2006 with 14 recorded births. The name reached its all-time peak in 2000 with 27 births ranking #4434. Since 1996, the popularity has decreased by 39.1%. In 2006, approximately 1 in every 135,791 girls born was named Cyndi. FALLING Recent data shows the name is currently falling.