Mattalyn is a distinctive girls' name in United States, ranking #8981 in 2011 with 13 recorded births. The name reached its all-time peak in 2008 with 16 births ranking #7981. Since 1996, the popularity has increased by 160.0%. In 2011, approximately 1 in every 135,293 girls born was named Mattalyn. FALLING Recent data shows the name is currently falling.