Brettley is a distinctive boys' name in United States, ranking #12441 in 2018 with 5 recorded births. This places Brettley in the bottom 12% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2013 with 10 births ranking #7610. In 2018, approximately 1 in every 363,095 boys born was named Brettley. FALLING Recent data shows the name is currently falling.