Trey is a distinctive boys' name in England & Wales, ranking #919 in 2018 with 32 recorded births. The name reached its all-time peak in 2010 with 64 births ranking #536. Since 1996, the popularity has increased by 113.3%. In 2018, approximately 1 in every 9,769 boys born was named Trey. FALLING Recent data shows the name is currently falling.