Tacy is a distinctive girls' name in United States, ranking #8734 in 1999 with 11 recorded births. The name reached its all-time peak in 2006 with 13 births ranking #9220. Since 1996, the popularity has increased by 83.3%. In 1999, approximately 1 in every 161,253 girls born was named Tacy. STABLE Recent data shows the name is currently stable.