Marcellus is a distinctive boys' name in United States, ranking #956 in 2018 with 217 recorded births. The name reached its all-time peak in 2021 with 351 births ranking #732. Since 1996, the popularity has increased by 114.9%. In 2018, approximately 1 in every 8,366 boys born was named Marcellus. FALLING Recent data shows the name is currently falling.