Oona is a distinctive girls' name in United States, ranking #4637 in 2007 with 32 recorded births. The name reached its all-time peak in 2015 with 131 births ranking #1639. Since 1996, the popularity has increased by 77.8%. In 2007, approximately 1 in every 60,077 girls born was named Oona. FALLING Recent data shows the name is currently falling.