Petar is a distinctive boys' name in United States, ranking #6540 in 2014 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 2014, approximately 1 in every 147,726 boys born was named Petar. FALLING Recent data shows the name is currently falling.