Mariko is a distinctive girls' name in United States, ranking #12998 in 2012 with 8 recorded births. The name reached its all-time peak in 1996 with 27 births ranking #4013. Since 1996, the popularity has decreased by 70.4%. In 2012, approximately 1 in every 220,093 girls born was named Mariko. RISING Recent data shows the name is currently rising.