MallowbyNames

Marcelus

mar-SEL-uhs · Of uncertain origin; likely a variant of Marcellus, derived from the Roman name Marcellus, a diminutive of Marcus, traditionally associated with the god Mars.

Peak popularity
1996
Usually for
Boys
Trend
Rising since 2015

Rising since 2015.

Popularity of Marcelus since 1970

Babies named Marcelus per year in U.S. Social Security records.

61218198020002020Most births 1996Boys
Data table (by decade)
DecadeBoys
1970s19
1980s38
1990s101
2000s64
2010s53
2020s32

Meaning & origin

Marcelus is a rare and distinctive given name that has never cracked the U.S. top 1000. Its peak came in 1996, and since 2015 its trajectory has turned upward, making it one of the quiet risers in American baby-naming. The name is an elaborated spelling of Marcellus, a Roman clan name ultimately connected to Marcus and the god Mars. Though it remains uncommon, with an estimated one-in-N ratio too low to measure, its recent growth suggests appeal among parents seeking formal, Latin-inflected choices that avoid the mainstream. The name has not been recorded in any U.S. state's top lists, reinforcing its rarity as a national outlier.

Marcelus is a variant of Marcellus, itself a diminutive of the ancient Roman praenomen Marcus. Marcus is traditionally linked to the Roman god Mars, the deity of war, though the etymology is debated. The name has been used in various forms across Europe since the Renaissance, often in honor of saints named Marcellus. Marcelus as a spelling variant is a modern respelling, possibly influenced by names like Angelo.

Nicknames & variants

Nicknames: Marcel, Mars, Marcy

Variants: Marcellus, Marcello, Marcel

Sibling names for Marcelus

Names that share Marcelus's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

M is for Marcelus, our favorite little boy.

M is for Marcelus…”

In a Mallowby alphabet book, Marcelus's letter becomes Marcelus's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Marcelus's book

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Questions parents ask

What does the name Marcelus mean?
Marcelus is of uncertain origin but is likely a variant of Marcellus, a diminutive of Marcus, traditionally associated with the Roman god Mars.
How popular is the name Marcelus?
Marcelus has never ranked in the U.S. top 1000. Its peak year was 1996, and it has been rising in use since 2015.
Is Marcelus a boy or girl name?
Marcelus is almost exclusively used as a boy's name.