Marielys is a distinctive girls' name in United States, ranking #6555 in 2010 with 20 recorded births. The name reached its all-time peak in 2008 with 22 births ranking #6281. Since 1996, the popularity has increased by 233.3%. In 2010, approximately 1 in every 88,866 girls born was named Marielys. FALLING Recent data shows the name is currently falling.