Billi is a distinctive girls' name in United States, ranking #7826 in 1997 with 11 recorded births. The name reached its all-time peak in 1996 with 21 births ranking #4753. Since 1996, the popularity has decreased by 47.6%. In 1997, approximately 1 in every 158,242 girls born was named Billi. RISING Recent data shows the name is currently rising.