Petar is a distinctive boys' name in United States, ranking #5658 in 2012 with 16 recorded births. The name reached its all-time peak in 2006 with 21 births ranking #4465. Since 1996, the popularity has decreased by 11.1%. In 2012, approximately 1 in every 118,539 boys born was named Petar. FALLING Recent data shows the name is currently falling.