Onya is a distinctive girls' name in United States, ranking #10483 in 2009 with 11 recorded births. The name reached its all-time peak in 2009 with 11 births ranking #10483. Since 1996, the popularity has increased by 57.1%. In 2009, approximately 1 in every 166,988 girls born was named Onya. FALLING Recent data shows the name is currently falling.