Bartosz is a distinctive boys' name in United States, ranking #4067 in 2005 with 22 recorded births. The name reached its all-time peak in 2009 with 24 births ranking #4174. Since 1996, the popularity has increased by 144.4%. In 2005, approximately 1 in every 90,779 boys born was named Bartosz. FALLING Recent data shows the name is currently falling.