MallowbyNames

Deloss

dee-LOSS · Most likely a variant of Delos, which is of uncertain origin; possibly from the Greek island Delos or a shortened form of names beginning with Del-.

Peak popularity
1918
Usually for
Boys
Trend
Holding steady

Holding steady.

Popularity of Deloss since 1912

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

51116192019602000Most births 1918Boys
Data table (by decade)
DecadeBoys
1910s74
1920s95
1930s48
1940s15
1950s5
1960s0
1970s0
1980s0
1990s0
2000s0
2010s0
2020s0

Meaning & origin

Deloss is a rare masculine name that saw its greatest popularity in the early 20th century. First recorded in 1912, it peaked in 1918, a period when many distinctive given names were in use. The name has remained stable in its rarity, never reaching high rank, and is estimated at 1 in every N births (data unavailable). Its origins are uncertain, likely a variant of Delos or a shortened form of longer Del- names. The name reflects the naming trends of the 1910s, a decade shared with names like Elmer and Mildred. While no top states are listed, the name likely had scattered use across the United States. Today, Deloss is a true rarity, offering a unique vintage choice.

Deloss is a rare given name that appears to be a variant of Delos, a name of uncertain origin. It may derive from the Greek island of Delos, a sacred island in classical mythology, or could be a short form of names such as Delbert or Delmar. The name was recorded in the United States primarily in the early 20th century, with most births occurring in the 1910s.

Nicknames & variants

Nicknames: Del

Variants: Delos

Sibling names for Deloss

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

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

D is for Deloss, our favorite little boy.

D is for Deloss…”

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

Make Deloss's book

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

Questions parents ask

What does the name Deloss mean?
Deloss is likely a variant of Delos, which may be connected to the Greek island Delos or a short form of names like Delbert. Its exact meaning is uncertain.
Is Deloss popular today?
No, Deloss is extremely rare. It was most popular in 1918, its peak year, and has not ranked in recent decades. As of 2025, its usage is negligible.
Is Deloss a boy or girl name?
Deloss is traditionally a masculine name, though rare usage for any gender is possible. The provided data indicates it is usually for boys.