Petar is a distinctive boys' name in United States, ranking #6627 in 2016 with 13 recorded births. The name reached its all-time peak in 2006 with 21 births ranking #4465. Since 1996, the popularity has decreased by 27.8%. In 2016, approximately 1 in every 145,939 boys born was named Petar. FALLING Recent data shows the name is currently falling.