Chantilly is a distinctive girls' name in United States, ranking #9653 in 1999 with 9 recorded births. The name reached its all-time peak in 1997 with 10 births ranking #8472. Since 1996, the popularity has increased by 12.5%. In 1999, approximately 1 in every 197,087 girls born was named Chantilly. FALLING Recent data shows the name is currently falling.