Trey is a distinctive boys' name in England & Wales, ranking #1319 in 2016 with 20 recorded births. The name reached its all-time peak in 2010 with 64 births ranking #536. Since 1996, the popularity has increased by 33.3%. In 2016, approximately 1 in every 16,597 boys born was named Trey. FALLING Recent data shows the name is currently falling.