MallowbyNames

Atreus

ἈτρεύςAH-tray-us · Of uncertain meaning; possibly derived from Greek 'atreus' meaning 'fearless' or related to 'athreos' meaning 'untroubled'.

2025 rank (boys)
#582
Babies named in 2025
504
Peak popularity
2023
2025 frequency
1 in 3,389 boys
Usually for
Boys
Trend
Rising since 2011

Rising since 2011, #582 for boys today.

Popularity of Atreus since 2008

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

22544967420102020Most births 2023Boys
Data table (by decade)
DecadeBoys
2000s5
2010s471
2020s3,058

Meaning & origin

Atreus is a name rooted in Greek mythology, famously borne by the father of Agamemnon and Menelaus. It first appeared on U.S. birth records in 2008 and has been on a steady upward trajectory since 2011, reaching its peak rank of 582 in 2025. With a 1-in-3,389 frequency, it remains an uncommon choice, most popular in states like Arizona, Oregon, and Nebraska. The name's rise may reflect a growing interest in mythological names, though its exact meaning remains debated. While not yet widely used, Atreus offers a distinctive option for parents drawn to classical storytelling.

Atreus is a name from Greek mythology, borne by the father of Agamemnon and Menelaus. The etymology is debated; it may be derived from the Greek word 'atreus' meaning 'fearless' or from 'athreos' meaning 'untroubled'. The name has been used sparingly in modern times, often inspired by mythological or literary references.

Where Atreus is most popular

Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.

Fewermore per 100k boystoo few births

Atreus” around the world

Where Atreus lands in the latest official birth statistics abroad, matched to the U.S. spelling.

  • New Zealand

    17

    babies in 2025

Sources: NZ Dept of Internal Affairs (New Zealand).

Nicknames & variants

Nicknames: At, Trey

Sibling names for Atreus

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

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

A is for Atreus, our favorite little boy.

A is for Atreus…”

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

Make Atreus's book

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

Questions parents ask

What does the name Atreus mean?
The meaning of Atreus is uncertain; it may come from Greek words meaning 'fearless' or 'untroubled'.
How popular is the name Atreus?
Atreus ranked 582nd in 2025, with about 1 in 3,389 boys given the name. Its popularity has been rising since 2011, peaking in 2023.
Is Atreus a boy or girl name?
Atreus is almost exclusively used as a boy's name.