Brielyn is a distinctive girls' name in United States, ranking #13791 in 2001 with 6 recorded births. This places Brielyn in the bottom 23% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2016 with 20 births ranking #6222. In 2001, approximately 1 in every 300,093 girls born was named Brielyn. FALLING Recent data shows the name is currently falling.