Marielys is a distinctive girls' name in United States, ranking #7525 in 2014 with 16 recorded births. The name reached its all-time peak in 2008 with 22 births ranking #6281. Since 1996, the popularity has increased by 166.7%. In 2014, approximately 1 in every 111,621 girls born was named Marielys. FALLING Recent data shows the name is currently falling.