Semaj is a distinctive boys' name in United States, ranking #1033 in 2000 with 142 recorded births. The name reached its all-time peak in 2011 with 374 births ranking #627. Since 1996, the popularity has increased by 37.9%. In 2000, approximately 1 in every 13,831 boys born was named Semaj. FALLING Recent data shows the name is currently falling.