Marcellus is a distinctive boys' name in United States, ranking #1243 in 2015 with 147 recorded births. The name reached its all-time peak in 2021 with 351 births ranking #732. Since 1996, the popularity has increased by 45.5%. In 2015, approximately 1 in every 13,036 boys born was named Marcellus. FALLING Recent data shows the name is currently falling.