Alonza is a distinctive boys' name in United States, ranking #9021 in 2009 with 8 recorded births. The name reached its all-time peak in 1998 with 14 births ranking #4657. Since 1996, the popularity has decreased by 20.0%. In 2009, approximately 1 in every 247,913 boys born was named Alonza. FALLING Recent data shows the name is currently falling.