Brett is a moderately popular boys' name in United States, ranking #163 in 2000 with 2,383 recorded births. The name reached its all-time peak in 1996 with 3,577 births ranking #110. Since 1996, the popularity has decreased by 33.4%. In 2000, approximately 1 in every 824 boys born was named Brett. FALLING Recent data shows the name is currently falling.