Lucus is a distinctive boys' name in United States, ranking #2183 in 1998 with 42 recorded births. The name reached its all-time peak in 2004 with 55 births ranking #2150. Since 1996, the popularity has increased by 23.5%. In 1998, approximately 1 in every 45,508 boys born was named Lucus. FALLING Recent data shows the name is currently falling.