Lucus is a distinctive boys' name in United States, ranking #1947 in 1997 with 47 recorded births. The name reached its all-time peak in 2004 with 55 births ranking #2150. Since 1996, the popularity has increased by 38.2%. In 1997, approximately 1 in every 40,108 boys born was named Lucus. FALLING Recent data shows the name is currently falling.