Brett is a moderately popular boys' name in United States, ranking #392 in 2009 with 766 recorded births. The name reached its all-time peak in 1996 with 3,577 births ranking #110. Since 1996, the popularity has decreased by 78.6%. In 2009, approximately 1 in every 2,589 boys born was named Brett. FALLING Recent data shows the name is currently falling.