Onna is a distinctive girls' name in United States, ranking #4994 in 2014 with 28 recorded births. The name reached its all-time peak in 2015 with 33 births ranking #4376. Since 1996, the popularity has increased by 366.7%. In 2014, approximately 1 in every 63,783 girls born was named Onna. RISING Recent data shows the name is currently rising.