Shaelyn is a distinctive girls' name in United States, ranking #1149 in 2000 with 177 recorded births. The name reached its all-time peak in 2000 with 177 births ranking #1149. Since 1996, the popularity has increased by 65.4%. In 2000, approximately 1 in every 10,260 girls born was named Shaelyn. FALLING Recent data shows the name is currently falling.