Brittlyn is a distinctive girls' name in United States, ranking #15832 in 2007 with 6 recorded births. The name reached its all-time peak in 2001 with 9 births ranking #10250. Since 1996, the popularity has decreased by 14.3%. In 2007, approximately 1 in every 320,408 girls born was named Brittlyn. STABLE Recent data shows the name is currently stable.