Lantz is a distinctive boys' name in United States, ranking #9402 in 2007 with 8 recorded births. The name reached its all-time peak in 2006 with 18 births ranking #4972. Since 1996, the popularity has decreased by 52.9%. In 2007, approximately 1 in every 259,404 boys born was named Lantz. FALLING Recent data shows the name is currently falling.