Onna is a distinctive girls' name in United States, ranking #9755 in 2006 with 12 recorded births. The name reached its all-time peak in 2015 with 33 births ranking #4376. Since 1996, the popularity has increased by 100.0%. In 2006, approximately 1 in every 158,423 girls born was named Onna. RISING Recent data shows the name is currently rising.