Marylu is a distinctive girls' name in United States, ranking #13800 in 1999 with 6 recorded births. The name reached its all-time peak in 2001 with 13 births ranking #8033. Since 1996, the popularity has decreased by 40.0%. In 1999, approximately 1 in every 295,630 girls born was named Marylu. FALLING Recent data shows the name is currently falling.