Trey is a moderately popular boys' name in United States, ranking #313 in 2008 with 1,067 recorded births. The name reached its all-time peak in 1999 with 1,798 births ranking #189. Since 1996, the popularity has decreased by 14.4%. In 2008, approximately 1 in every 1,912 boys born was named Trey. FALLING Recent data shows the name is currently falling.