Cinthia is a distinctive girls' name in United States, ranking #1122 in 1999 with 177 recorded births. The name reached its all-time peak in 1996 with 205 births ranking #942. Since 1996, the popularity has decreased by 13.7%. In 1999, approximately 1 in every 10,021 girls born was named Cinthia. FALLING Recent data shows the name is currently falling.