Bartosz is a moderately popular boys' name in England & Wales, ranking #486 in 2011 with 75 recorded births. This places Bartosz in the top 8% of ranked UK boys' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 2009 with 104 births ranking #376. In 2011, approximately 1 in every 4,611 boys born was named Bartosz. FALLING Recent data shows the name is currently falling.