Trey is a moderately popular boys' name in United States, ranking #213 in 2002 with 1,611 recorded births. The name reached its all-time peak in 1999 with 1,798 births ranking #189. Since 1996, the popularity has increased by 29.2%. In 2002, approximately 1 in every 1,205 boys born was named Trey. FALLING Recent data shows the name is currently falling.