Ontario is a distinctive boys' name in United States, ranking #5009 in 2006 with 18 recorded births. The name reached its all-time peak in 1996 with 29 births ranking #2658. Since 1996, the popularity has decreased by 37.9%. In 2006, approximately 1 in every 114,173 boys born was named Ontario. FALLING Recent data shows the name is currently falling.