Bartosz is a distinctive boys' name in United States, ranking #4532 in 2006 with 20 recorded births. The name reached its all-time peak in 2009 with 24 births ranking #4174. Since 1996, the popularity has increased by 122.2%. In 2006, approximately 1 in every 102,756 boys born was named Bartosz. FALLING Recent data shows the name is currently falling.