Shaelyn is a distinctive girls' name in United States, ranking #1228 in 1999 with 155 recorded births. The name reached its all-time peak in 2000 with 177 births ranking #1149. Since 1996, the popularity has increased by 44.9%. In 1999, approximately 1 in every 11,444 girls born was named Shaelyn. FALLING Recent data shows the name is currently falling.