Gaius
About Gaius
Stately Gaius (pronounced GUY-us) was in the name of many ancient Romans, including Julius Caesar. Little-used before the year 2000, it now feels like a fresh possibility in the revival of Latin boys' names like Atticus and Cassius. Caius and derivatives like Caio come from the same root, and in ancient Roman times Caius was probably pronounced as Gaius. You could also see Gaius as a male version of the earth-goddess name Gaia.
Pronounced GY-us.
As of October 2026, Gaius ranked #3598 in US births in 2025 SSA, peaked at #2824 in 2014.
Editor's take: The name Gaius is a boy's name of Latin origin meaning "to rejoice".
Popularity & trends
Data table
| Year | US rank | Births | Per million |
|---|---|---|---|
| 2014 | #2,824 | 42 | 21.9 |
| 2015 | — | 0 | 0 |
| 2016 | #4,369 | 23 | 12.1 |
| 2017 | #3,815 | 28 | 15.1 |
| 2018 | #4,988 | 19 | 10.5 |
| 2019 | #4,525 | 22 | 12.3 |
| 2020 | #3,600 | 30 | 17.4 |
| 2021 | #4,986 | 19 | 10.9 |
| 2022 | #4,470 | 23 | 13.2 |
| 2023 | — | 0 | 0 |
| 2024 | #3,618 | 31 | 18 |
| 2025 | #3,598 | 31 | 18.1 |
Similar names
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Gaius on lists
Famous Gaiuss
- Gaius
Paul's host named in Romans 16:23
- Gaius
recipient of the apostle John's third epistle
- (Gaius) Julius Caesar
Roman politician who later became the Dictator of Rome
- Gaius Julius Caesar Octavianus
aka Augustus, first Roman Emperor
- Gaius Julius Caesar Augustus Germanicus
aka Caligula, Roman Emperor
- Gaius Julius Caesar (born Gaius Vipsanius Agrippa)
adopted son of Augustus
- Gaius Sempronius Gracchus
Roman politician known for his reformative laws
- Gaius Cilnius Maecenas
adviser to Augustus
- Gaius Marius
Roman general and consul
- Gaius Avidius Cassius
Usurper of the Roman Empire
- Gaius Valerius Troucillus
interpreter for Julius Caesar
- Gaius Valerius Flaccus
Roman consul
- Gaius Antonius Hybrida
Roman consul
- Gaius Charles
American actor
- Gaius Lee DuPree
American actor
Gaius in pop culture
- Gaius Baltar
character on TV's "Battlestar Galactica"
- Gaius Helen Mohiam
female character in Frank Herbert's "Dune"
- Gaius
character TV's "Merlin"
- Gaius
a candy,obsessed thief in video game "Fire Emblem Awakening"
- Gaius Sextus
Gaius Septimus, and Gaius Octavian aka Tavi, Codex Alera
- Gaius Maro
character in video game "The Elder Scrolls V: Skyrim"
- General Gaius
a character in video game "Dust: An Elysian Tail"
- Gaius Van Baelsar
character in video game "Final Fantasy XIV: A Realm Reborn"
- King Gaius
a character in video game "Tales of Xillia"
- Gaius
a blacksmith in video game "Rune Factory 3"
- Gaius
a character in video game "Tears to Tiara"
- Gaius
one of the 16 colossi in video game "Shadow of the Colossus"