Mattalyn is a distinctive girls' name in United States, ranking #8349 in 2014 with 14 recorded births. The name reached its all-time peak in 2008 with 16 births ranking #7981. Since 1996, the popularity has increased by 180.0%. In 2014, approximately 1 in every 127,567 girls born was named Mattalyn. FALLING Recent data shows the name is currently falling.