Blas is a distinctive boys' name in United States, ranking #3909 in 2014 with 26 recorded births. This places Blas in the top 28% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2005 with 42 births ranking #2620. In 2014, approximately 1 in every 73,863 boys born was named Blas. FALLING Recent data shows the name is currently falling.