Ontario is a distinctive boys' name in United States, ranking #6252 in 2021 with 14 recorded births. The name reached its all-time peak in 1996 with 29 births ranking #2658. Since 1996, the popularity has decreased by 51.7%. In 2021, approximately 1 in every 124,874 boys born was named Ontario. FALLING Recent data shows the name is currently falling.