Marcellus is a distinctive boys' name in United States, ranking #1177 in 2001 with 117 recorded births. The name reached its all-time peak in 2021 with 351 births ranking #732. Since 1996, the popularity has increased by 15.8%. In 2001, approximately 1 in every 16,605 boys born was named Marcellus. FALLING Recent data shows the name is currently falling.