MallowbyNames

Delos

DEE-los · Of uncertain origin; possibly from Greek Delos, the sacred island of Apollo.

Peak popularity
1890
Usually for
Boys
Trend
Holding steady

Holding steady.

Popularity of Delos since 1880

Babies named Delos per year in U.S. Social Security records. Raw births topped out in 1923, but relative to how few babies were recorded back then, Delos's real moment was 1890.

1633491880192019602000Most births 1923Boys
Data table (by decade)
DecadeBoys
1880s30
1890s35
1900s32
1910s249
1920s365
1930s262
1940s144
1950s115
1960s50
1970s14
1980s11
1990s6
2000s0
2010s6
2020s5

Meaning & origin

Delos is a rare classical name drawn from Greek mythology and geography. The name first appeared in U.S. birth records in 1880, with its peak year of usage occurring in 1890. Despite its long history, Delos has never ranked among the top 1000 names in any year, and it remains a distinctive choice. Its stable trajectory over the decades suggests a name that has seen consistent but very low usage, never experiencing a significant surge or decline. The name's direct link to the sacred Greek island of Delos gives it a mythological aura, appealing to parents drawn to classical or place names. Unlike more common ancient names, Delos offers a singular identity without heavy cultural baggage.

Delos is a name taken directly from the Greek island of Delos, the mythological birthplace of Apollo and Artemis. The island's name is of uncertain etymology, though it was associated with the Greek word "delos" (meaning clear or visible). The name was used sparingly in the English-speaking world from the 19th century onward, perhaps as a classical revival name.

Sibling names for Delos

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

Sisters: Elara, Cleo, Lydia, Thalia, Iris

Brothers: Linus, Cyrus, Orion, Miles, Felix

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

D is for Delos, our favorite little boy.

D is for Delos…”

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

Make Delos's book

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

Questions parents ask

What does the name Delos mean?
The meaning of Delos is uncertain. It is most famously the name of the Greek island where Apollo and Artemis were said to be born, but the island's name itself may predate Greek and have no clear meaning.
How popular is the name Delos today?
Delos is very rare in the United States. It has not ranked in the top 1000 names for any recent year, including 2025.
Is Delos a boy's name or a girl's name?
Delos is traditionally used as a boy's name, though its rarity means it could be considered unisex in modern usage.