Onya is a distinctive girls' name in United States, ranking #14930 in 2002 with 6 recorded births. The name reached its all-time peak in 2009 with 11 births ranking #10483. Since 1996, the popularity has decreased by 14.3%. In 2002, approximately 1 in every 299,470 girls born was named Onya. FALLING Recent data shows the name is currently falling.