Lucus is a distinctive boys' name in United States, ranking #2784 in 2014 with 43 recorded births. The name reached its all-time peak in 2004 with 55 births ranking #2150. Since 1996, the popularity has increased by 26.5%. In 2014, approximately 1 in every 44,661 boys born was named Lucus. FALLING Recent data shows the name is currently falling.