Mariko is a distinctive girls' name in United States, ranking #7864 in 2000 with 13 recorded births. The name reached its all-time peak in 1996 with 27 births ranking #4013. Since 1996, the popularity has decreased by 51.9%. In 2000, approximately 1 in every 139,690 girls born was named Mariko. RISING Recent data shows the name is currently rising.