Petra is a distinctive girls' name in United States, ranking #1430 in 2021 with 151 recorded births. The name reached its all-time peak in 2015 with 176 births ranking #1351. Since 1996, the popularity has increased by 77.6%. In 2021, approximately 1 in every 10,859 girls born was named Petra. STABLE Recent data shows the name is currently stable.