Ontario is a distinctive boys' name in United States, ranking #2960 in 1997 with 26 recorded births. The name reached its all-time peak in 1996 with 29 births ranking #2658. Since 1996, the popularity has decreased by 10.3%. In 1997, approximately 1 in every 72,503 boys born was named Ontario. FALLING Recent data shows the name is currently falling.