Bartosz is a distinctive boys' name in United States, ranking #5878 in 1998 with 10 recorded births. The name reached its all-time peak in 2009 with 24 births ranking #4174. Since 1996, the popularity has increased by 11.1%. In 1998, approximately 1 in every 191,132 boys born was named Bartosz. FALLING Recent data shows the name is currently falling.