Trey is a distinctive boys' name in England & Wales, ranking #1745 in 2019 with 13 recorded births. The name reached its all-time peak in 2010 with 64 births ranking #536. Since 1996, the popularity has decreased by 13.3%. In 2019, approximately 1 in every 23,373 boys born was named Trey. FALLING Recent data shows the name is currently falling.