Marielys is a distinctive girls' name in United States, ranking #9887 in 2005 with 11 recorded births. The name reached its all-time peak in 2008 with 22 births ranking #6281. Since 1996, the popularity has increased by 83.3%. In 2005, approximately 1 in every 167,973 girls born was named Marielys. FALLING Recent data shows the name is currently falling.