MallowbyNames

Demarrio

dih-MAR-ee-oh · Of uncertain origin; likely a modern coinage combining the prefix De- with the name Mario or a similar sound.

Peak popularity
1984
Usually for
Boys
Trend
Holding steady

Holding steady.

Popularity of Demarrio since 1976

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

51116198020002020Most births 1984Boys
Data table (by decade)
DecadeBoys
1970s22
1980s97
1990s42
2000s25
2010s5
2020s7

Meaning & origin

Demarrio is a modern coinage that first appeared in U.S. birth records in 1976, a time when distinctive prefixed names were gaining popularity. It reached its highest usage in 1984, though it remains unranked nationally. The name combines the fashionable prefix De- with a Mario-like ending, reflecting the creative naming trends of African-American communities in the late 20th century. While Demarrio never achieved wide adoption, it has maintained a stable presence, appearing each year through 2025. Its top states of use are not well-documented due to its rarity, but it fits a pattern of similar names like DeShawn and DeAndre. Demarrio's meaning is ultimately invented, and as such it carries the personal significance given by its bearers.

Demarrio is a modern coinage that appears to combine the prefix De- (common in African-American naming traditions) with the Italian name Mario or the popular suffix -ario. It first appeared in U.S. birth records in 1976 and saw modest use in the 1980s, peaking in 1984. The name fits a pattern of De- prefixed names that emerged in the late 20th century, such as DeShawn and DeAndre.

Nicknames & variants

Nicknames: Dem, Rio, D

Variants: DeMario, Demario

Sibling names for Demarrio

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

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

D is for Demarrio, our favorite little boy.

D is for Demarrio…”

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

Make Demarrio's book

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

Questions parents ask

What does the name Demarrio mean?
The exact meaning of Demarrio is uncertain. It is likely a modern invented name formed from the prefix De- combined with Mario or a similar element.
How popular is Demarrio?
Demarrio has never ranked among the top 1,000 names in the U.S. Its peak year was 1984. In 2025, it remains relatively uncommon.
Is Demarrio a boy's name?
Yes, Demarrio is almost exclusively used as a boy's name.