Olegario is a distinctive boys' name in United States, ranking #6693 in 1998 with 9 recorded births. The name reached its all-time peak in 2001 with 13 births ranking #5588. Since 1996, the popularity has increased by 12.5%. In 1998, approximately 1 in every 212,369 boys born was named Olegario. RISING Recent data shows the name is currently rising.