Ashby is a distinctive girls' name in United States, ranking #5454 in 2005 with 23 recorded births. The name reached its all-time peak in 2011 with 34 births ranking #4258. Since 1996, the popularity has increased by 64.3%. In 2005, approximately 1 in every 80,335 girls born was named Ashby. FALLING Recent data shows the name is currently falling.