Blas is a distinctive boys' name in United States, ranking #2234 in 1999 with 41 recorded births. The name reached its all-time peak in 2005 with 42 births ranking #2620. Since 1996, the popularity has increased by 57.7%. In 1999, approximately 1 in every 46,831 boys born was named Blas. FALLING Recent data shows the name is currently falling.