Lantz is a distinctive boys' name in United States, ranking #7321 in 2004 with 10 recorded births. The name reached its all-time peak in 2006 with 18 births ranking #4972. Since 1996, the popularity has decreased by 41.2%. In 2004, approximately 1 in every 198,480 boys born was named Lantz. FALLING Recent data shows the name is currently falling.