MallowbyNames

Elmo

EL-moh · Of uncertain origin; possibly from Greek "helmos" (a helmet) or Old German "helm" (helmet, protection).

Peak popularity
1909
Usually for
Boys
Trend
Holding steady

Holding steady.

Popularity of Elmo since 1880

Babies named Elmo per year in U.S. Social Security records. Raw births topped out in 1920, but relative to how few babies were recorded back then, Elmo's real moment was 1909.

1322653971880192019602000Most births 1920Boys
Data table (by decade)
DecadeBoys
1880s135
1890s191
1900s416
1910s2,476
1920s2,891
1930s1,436
1940s1,022
1950s691
1960s376
1970s202
1980s131
1990s85
2000s23
2010s5
2020s11

Meaning & origin

Elmo is a rare name today, but its history in the United States dates back to 1880, the first year of Social Security name records. While it has never been among the most common names, it experienced a modest peak in 1909, when it was given to 137 baby boys. Since then, its usage has remained stable but very low; in recent years it has not appeared in the top 1,000. The name is perhaps best known through the children's television character Elmo from Sesame Street, though that association has not significantly boosted its real-world popularity. Despite its low rank, Elmo retains a vintage charm and a clear, easy pronunciation. Its origins are debated, with connections to both Greek and Germanic roots, and it shares a lineage with names like Elmore. While it is most strongly associated with boys, its distinctiveness could appeal to parents seeking a short historic name with a friendly sound.

Elmo likely derives from short forms of names containing the element "helm" (helmet, protection), such as Helmuth or Wilhelm. It also appears as a variant of the name Erasmus through Saint Elmo, the patron saint of sailors. The name gained moderate use in the 19th and early 20th centuries but declined after the 1930s.

Where Elmo is most popular

Births per 100,000 boys by state. Press play or drag the slider to watch it move across the decades. The lightest shade means too few recorded births.

2020s
Fewermore per 100k boystoo few births

Nicknames & variants

Variants: Elmore

Sibling names for Elmo

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

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

E is for Elmo, our favorite little boy.

E is for Elmo…”

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

Make Elmo's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Elmo mean?
Elmo is of uncertain origin, possibly from the Greek word for helmet or a short form of Germanic names meaning 'helmet' or 'protection'.
How popular is Elmo today?
As of 2025, Elmo does not rank among the top 1,000 names in the U.S. Its peak popularity was in 1909, but it is now rarely used.
Is Elmo a boy or girl name?
Elmo is traditionally a masculine name, used almost exclusively for boys.