Baby Names US
boys' name ★ peaked 2014

Gaius

Meaning A male given name from Latin, of rare usage Gender Boy Rank 2025 #3,598 Trend ↑ Rising 18%

A male given name from Latin, of rare usage

Rank 2025
#3,598
among boys · ↑36 vs 2024
Babies in 2025
31
named Gaius
How common
1 in 55,099
boys born in 2025
Peak year
2014
42 babies
All-time total
529
#7,627 all-time among boys
First recorded
1920
in Social Security records

Gaius popularity over time

529 babies have been named Gaius since 1920, according to official Social Security records. Switch measure to see births per year or the yearly rank.

Measure
Births per 1,000 babies of that sex, comparable across eras
0.010.010.020.0318801900192019401960198020002020Peak 2014Boys

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade Boys Per year Change Best rank
1880s – – – –
1890s – – – –
1900s – – – –
1910s – – – –
1920s 15 2 – #3,316
1930s 10 1 -33% #3,842
1940s 12 1 +20% #3,342
1950s 5 1 -58% #4,010
1960s – – – –
1970s 12 1 – #4,230
1980s 10 1 -17% #6,606
1990s 5 1 -50% #10,151
2000s 80 8 +1500% #4,810
2010s 229 23 +186% #2,825
2020s (to 2025) 151 25 +10% #3,598

Where Gaius is heading

A five-year projection from the recent trend in births per 1,000 boys (damped so it flattens over time), converted to babies at today's birth totals. The implied rank places that projection in the 2025 field. A projection, not a promise: real trends bend.

Year Projected babies Per 1,000 boys Implied rank
2026 32 0.02 outside top 500
2027 34 0.02 outside top 500
2028 35 0.02 outside top 500
2029 36 0.02 outside top 500
2030 36 0.02 outside top 500

The story of Gaius

Gaius is rare for boys in the United States, ranked #3,598 in 2025 with 31 babies given the name. It is currently holding steady compared with a decade ago.

Since 1920, 529 American babies have been named Gaius. Its peak came in 2014, when 42 newborns received the name, the signature sound of the 2010s.

The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Gaius stood among all boys' names in any year, or use the compare tool to plot it against other names.

How old are people named Gaius?

The median living Gaius is about 10 years old; half are between 5 and 15. An estimated 500 people named Gaius are alive in the United States today.

median 10 020406080100

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Gaius year by year

Every year since 2001, and five-year steps back to 1880. Rank is within each sex.

Year Boys Boys rank
2025 31 #3,598
2024 31 #3,634
2023 17 #5,533
2022 23 #4,473
2021 19 #4,987
2020 30 #3,603
2019 22 #4,526
2018 19 #4,989
2017 28 #3,816
2016 23 #4,370
2015 15 #5,822
2014 42 #2,825
2013 30 #3,525
2012 24 #4,177
2011 13 #6,359
2010 13 #6,473
2009 20 #4,810
2008 16 #5,579
2007 17 #5,276
2006 14 #5,883
2005 7 #9,447
2004 6 #10,405
2003 – –
2002 – –
2001 – –
2000 – –
1995 – –
1990 – –
1985 – –
1980 – –
1975 – –
1970 – –
1965 – –
1960 – –
1955 – –
1950 – –
1945 – –
1940 – –
1935 – –
1930 – –
1925 – –
1920 8 #3,316
1915 – –
1910 – –
1905 – –
1900 – –
1895 – –
1890 – –
1885 – –
1880 – –

Famous people named Gaius

The most globally famous bearers of the name, ranked by fame across Wikipedia editions (Pantheon project, MIT).

  1. 1 Gaius Marius Gaius Marius Roman general and statesman (c. 157–86 BC) -157–-86 · Antiquity
  2. 2 Gaius Cassius Longinus Gaius Cassius Longinus Roman senator and general (c. 86 BC–42 BC) -87–-42 · Antiquity
  3. 3 Gaius Caesar Gaius Caesar Grandson and heir of Augustus (20 BC – 4 AD) -20–4 · Antiquity
  4. 4 Gaius Claudius Glaber 1st century BC Roman military commander -200–-100 · Antiquity
  5. 5 Gaius Gracchus Gaius Gracchus Roman politician and reformer (c. 154 BC – 121 BC) -154–-121 · Antiquity
  6. 6 Gaius Maecenas Gaius Maecenas Roman political advisor (d. 8 BCE) -68–-8 · Antiquity
  7. 7 Gaius Julius Hyginus Roman freedman and writer (c. 64 BC – AD 17) -64–17 · Antiquity
  8. 8 Gaius Terentius Varro Roman general and politician -300–-200 · Antiquity
  9. 9 Gaius Musonius Rufus 1st century AD Roman Stoic philosopher 25–95 · Antiquity
  10. 10 Gaius Marius the Younger Roman general and politician -109–-82 · Antiquity
  11. 11 Gaius Julius Civilis Gaius Julius Civilis Leader of the Batavian rebellion against the Romans in 69 AD 25–100 · Antiquity
  12. 12 Gaius Antonius Hybrida Roman consul in 63 BC and general -90–-42 · Antiquity
  13. 13 Gaius Julius Vindex Gaius Julius Vindex Roman senator and governor (AD c. 25–68) Antiquity
  14. 14 Gaius Gaius Roman jurist (2nd century AD) 120–180 · Antiquity
  15. 15 Gaius Lucilius 2nd-century-BC Roman satirist -180–-102 · Antiquity
  16. 16 Gaius Claudius Nero Gaius Claudius Nero Roman general and statesman, consul in 207 BCE -300–-260 · Antiquity
  17. 17 Gaius Marcius Coriolanus Gaius Marcius Coriolanus 5th-century BCE Roman general
  18. 18 Gaius Marius Victorinus 4th-century Roman philosopher and rhetorician 310–364 · Antiquity
  19. 19 Gaius Vibius Pansa Caetronianus Roman Republican politician and consul in 43 BC -91–-43 · Antiquity
  20. 20 Gaius Julius Solinus Gaius Julius Solinus 3rd century Roman geographer and grammarian 400–400 · Antiquity

Portraits from Wikipedia (Wikimedia Commons).

Frequently asked questions

Quick answers about Gaius, drawn from the same Social Security data as the charts above.

How old is the average Gaius?

The median living Gaius is about 10 years old. Half of all living Gaiuss are between 5 and 15 years old.

How many people named Gaius are alive today?

An estimated 500 people named Gaius are alive in the United States, based on 529 recorded births and Social Security life tables.

What does the name Gaius mean?

A male given name from Latin, of rare usage

How popular is the name Gaius in 2025?

Gaius ranked #3,598 among boys' names in the United States in 2025, with 31 babies given the name, according to Social Security Administration data.

How many people are named Gaius?

529 babies have been named Gaius in the United States since 1920, based on Social Security card applications.

When was the name Gaius most popular?

Gaius peaked in 2014, when 42 newborns received the name.

Is Gaius a boy or girl name?

Gaius is overwhelmingly a boy's name: 100% of babies with the name.

Is the name Gaius rising or falling?

Gaius has been roughly stable over the past decade.

Will Gaius become more popular?

Gaius is trending upward. If the recent trend holds, we project roughly 36 boys named Gaius in 2030, which would rank outside the top 500. Forecasts assume the current trend continues and become less certain further out.

Who are famous people named Gaius?

Well-known people named Gaius include Gaius Marius (diplomat), Gaius Cassius Longinus (politician), Gaius Caesar (nobleman).

Names like Gaius

Names that sound and feel close to Gaius: shared sounds, similar era, similar popularity. Each links to its full history.

Compare Gaius with similar names → More names starting with G →