Bartosz is a distinctive boys' name in United States, ranking #6304 in 2003 with 11 recorded births. The name reached its all-time peak in 2009 with 24 births ranking #4174. Since 1996, the popularity has increased by 22.2%. In 2003, approximately 1 in every 179,570 boys born was named Bartosz. FALLING Recent data shows the name is currently falling.