Billi is a distinctive girls' name in United States, ranking #17736 in 2009 with 5 recorded births. The name reached its all-time peak in 1996 with 21 births ranking #4753. Since 1996, the popularity has decreased by 76.2%. In 2009, approximately 1 in every 367,374 girls born was named Billi. RISING Recent data shows the name is currently rising.