Bartosz is a distinctive boys' name in United States, ranking #8213 in 2004 with 8 recorded births. The name reached its all-time peak in 2009 with 24 births ranking #4174. Since 1996, the popularity has decreased by 11.1%. In 2004, approximately 1 in every 248,100 boys born was named Bartosz. FALLING Recent data shows the name is currently falling.