Katelyne is a distinctive girls' name in United States, ranking #6941 in 2008 with 19 recorded births. The name reached its all-time peak in 1999 with 33 births ranking #3669. Since 1996, the popularity has decreased by 20.8%. In 2008, approximately 1 in every 99,511 girls born was named Katelyne. FALLING Recent data shows the name is currently falling.