Debby is a distinctive girls' name in United States, ranking #8713 in 2000 with 11 recorded births. The name reached its all-time peak in 1996 with 15 births ranking #6141. Since 1996, the popularity has decreased by 26.7%. In 2000, approximately 1 in every 165,088 girls born was named Debby. RISING Recent data shows the name is currently rising.