Billi is a distinctive girls' name in United States, ranking #13590 in 2011 with 7 recorded births. The name reached its all-time peak in 1996 with 21 births ranking #4753. Since 1996, the popularity has decreased by 66.7%. In 2011, approximately 1 in every 251,258 girls born was named Billi. RISING Recent data shows the name is currently rising.