Chelby is a distinctive girls' name in United States, ranking #9607 in 2008 with 12 recorded births. The name reached its all-time peak in 1998 with 35 births ranking #3436. Since 1996, the popularity has decreased by 47.8%. In 2008, approximately 1 in every 157,560 girls born was named Chelby. STABLE Recent data shows the name is currently stable.