Onna is a distinctive girls' name in United States, ranking #10109 in 1999 with 9 recorded births. The name reached its all-time peak in 2015 with 33 births ranking #4376. Since 1996, the popularity has increased by 50.0%. In 1999, approximately 1 in every 197,087 girls born was named Onna. RISING Recent data shows the name is currently rising.