Mariko is a distinctive girls' name in United States, ranking #12306 in 2007 with 9 recorded births. The name reached its all-time peak in 1996 with 27 births ranking #4013. Since 1996, the popularity has decreased by 66.7%. In 2007, approximately 1 in every 213,605 girls born was named Mariko. RISING Recent data shows the name is currently rising.