Marielos is a distinctive girls' name in United States, ranking #17395 in 2003 with 5 recorded births. This places Marielos in the bottom 6% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2003 with 5 births ranking #17395. In 2003, approximately 1 in every 365,410 girls born was named Marielos. STABLE Recent data shows the name is currently stable.