MallowbyNames

Trey

TRAY · Three, often used for a third-born son or a namesake bearing a III suffix.

2025 rank (boys)
#883
Babies named in 2025
269
Peak popularity
1999
2025 frequency
1 in 6,350 boys
Usually for
Boys
Trend
Declining since 1999

Declining since 1999, #883 for boys today.

Popularity of Trey since 1948

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

5991.2k1.8k1960198020002020Most births 1999Boys
Data table (by decade)
DecadeBoys
1940s6
1950s154
1960s727
1970s1,099
1980s3,394
1990s12,618
2000s13,890
2010s6,413
2020s2,175

Meaning & origin

Trey is a distinctive English word name that originated as a nickname for a third-born son, often one who carries a III suffix. It has been in use in the United States since 1948, and its popularity climbed through the late 20th century, reaching a peak year in 1999. Since then, its popularity has steadily declined. In 2025, it ranks 883rd with approximately 1 in 6350 boys receiving the name. Geographically, it has been most common in states such as South Dakota, Utah, and Kansas, reflecting a concentration in the American heartland. Trey's straightforward meaning and modern feel make it a casual, friendly choice that avoids the formality of traditional generational titles.

Trey is derived from the English word for the number three, stemming from Old French 'treis' and Latin 'tres'. It emerged as a nickname for a boy who is the third to carry a family name (e.g., John Smith III). The name began appearing in U.S. birth records in 1948 and gained popularity in the late 20th century.

Where Trey 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

Sibling names for Trey

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

Names like Trey

Names whose popularity has moved with Trey's over the last 50 years.

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

T is for Trey, our favorite little boy.

T is for Trey…”

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

Make Trey's book

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

Questions parents ask

What does the name Trey mean?
Trey is an English word meaning 'three,' and it is traditionally given to a third-born son, often in families with a naming tradition like John Smith III.
How popular is the name Trey?
As of 2025, Trey ranks 883rd in the U.S., with about 1 in 6350 boys given the name. Its peak popularity was in 1999, and it has been falling since.
Is Trey a boy or girl name?
Trey is almost exclusively used as a boy's name.