In 2025, 208 US boys were named Marcellus, making it the 1,054th most common boys’ name of the year, down 103 places from #951 in 2024. That is 33 fewer than the 241 boys named Marcellus in 2024. Its best rank for boys was #548, reached in 1902. The most boys given the name in a single year was 351, in 2021. For comparison, it was #1,243 in 2015 and #1,641 in 1950.
Social Security card records list Marcellus in 143 years of the 146 from 1880 to 2025, starting in 1880 with 11 babies. In all, 9,608 US babies have been given the name, 0.1% of them girls and 99.9% boys. Its busiest decade was the 2020s, with 1,732 babies named Marcellus.
Over the 10 years from 2016 to 2025, 2,519 US boys were named Marcellus; the busiest of those years was 2021, with 351. In 2025 that was about 1 in 8,212 of the boys in SSA’s list for the year.
Among the states, Marcellus ranked highest in Virginia in 2025, at #612 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Marcel (21,123 babies since 1880), Marcello (6,618 babies since 1880), Marcell (5,988 babies since 1880) and Markel (4,829 babies since 1880). Rarer spellings such as Marcellous, Marcellis and Marcelus are summarised on this page.