Bartosz is a distinctive boys' name in United States, ranking #6104 in 2008 with 14 recorded births. The name reached its all-time peak in 2009 with 24 births ranking #4174. Since 1996, the popularity has increased by 55.6%. In 2008, approximately 1 in every 145,711 boys born was named Bartosz. FALLING Recent data shows the name is currently falling.