Masato is a distinctive boys' name in United States, ranking #10494 in 2007 with 7 recorded births. The name reached its all-time peak in 2002 with 10 births ranking #6869. Since 1996, the popularity has increased by 40.0%. In 2007, approximately 1 in every 296,462 boys born was named Masato. STABLE Recent data shows the name is currently stable.