Ontario is a distinctive boys' name in United States, ranking #13595 in 2019 with 5 recorded births. The name reached its all-time peak in 1996 with 29 births ranking #2658. Since 1996, the popularity has decreased by 82.8%. In 2019, approximately 1 in every 358,672 boys born was named Ontario. FALLING Recent data shows the name is currently falling.