Brazos is a distinctive boys' name in United States, ranking #8829 in 1999 with 6 recorded births. This places Brazos in the bottom 24% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2018 with 26 births ranking #4005. In 1999, approximately 1 in every 320,015 boys born was named Brazos. FALLING Recent data shows the name is currently falling.