MallowbyNames

Delmus

DEL-mus · Of uncertain origin; possibly a variant of Delmer or a coined name from popular sounds.

Peak popularity
1907
Usually for
Boys
Trend
Holding steady

Holding steady.

Popularity of Delmus since 1907

Babies named Delmus per year in U.S. Social Security records. Raw births topped out in 1938, but relative to how few babies were recorded back then, Delmus's real moment was 1907.

61218192019602000Most births 1938Boys
Data table (by decade)
DecadeBoys
1900s9
1910s38
1920s99
1930s127
1940s113
1950s90
1960s53
1970s52
1980s18
1990s0
2000s0
2010s0
2020s0

Meaning & origin

Delmus first appeared in U.S. birth records in 1907, which remains its peak year of usage. The name has never ranked in the top 1000 and shows a stable, extremely low frequency over time, with no recorded births in the most recent year checked (2025). Its rarity places it well outside the 1-in-N naming range, meaning fewer than 1 in 100,000 newborns receive this name. Top states where Delmus was reported include none, as usage was scattered and well below the threshold for state-level reporting. The name likely originated as a variant of the more common Delmer, itself derived from an English surname. Despite its obscurity, Delmus carries a distinctly vintage, early 1900s character that might appeal to parents seeking a truly uncommon name with an authentic historical footprint.

Delmus appears in early 20th century U.S. records, likely as a variant of Delmer (from an English surname, itself perhaps from a place name). It may also have been coined by combining the common initial syllable 'Del' (as in Delbert, Delmar) with the masculine-sounding ending 'mus'. The name saw peak use in 1907 and has remained rare since.

Nicknames & variants

Nicknames: Del

Variants: Delmer

Sibling names for Delmus

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

Sisters: Elma, Nellie, Mabel, Cora, Lula

Brothers: Delbert, Elmer, Otis, Claude, Homer

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

D is for Delmus, our favorite little boy.

D is for Delmus…”

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

Make Delmus's book

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Questions parents ask

What does the name Delmus mean?
The meaning of Delmus is uncertain. It is likely a variant of Delmer or a coined name from fashionable sounds of the early 1900s.
How popular is Delmus currently?
Delmus is not among the top 1000 names in the U.S. and has no recorded births in recent years. Its peak usage was in 1907, when it first appears in Social Security data.
Is Delmus a boy's name or a girl's name?
Delmus has historically been used as a boy's name, with no recorded female usage in official U.S. data.