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Gaius

#3,597 in 2025Boys' name

Possibly to rejoice

Gaius has been given to 529 babies in the U.S. since 1920. In 2025 it ranked #3,597 of 13,926 boys’ names in use. Its peak year was 2014, with 42 recorded.

Babies named Gaius, 2025

1 in 107,000

Gaius over time, 1880–2025

Boys
020406018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Gaius: meaning, origin, and history

Possibly to rejoice

Deeper origin not confirmed in the cited records

What Gaius means

Gaius may mean “to rejoice”.

American usage and historical context

In the United States, 529 boys were recorded with the name Gaius between 1920 and 2025. Its highest annual count was 42 in 2014; its best national rank was #2,823 in 2014.

Over 5 years its rank rose, from #3,600 in 2020 to #3,597 in 2025. Over 10 years its rank rose, from #5,818 in 2015 to #3,597 in 2025.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

How common is Gaius?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 107,000
31 of 3,315,165 births
Among boys only
1 in 55,100
<0.01% of boys
Rank, 2025
#3,597
of 13,926 boys’ names in use
Coin-flip room size
74,127 kids
Even odds of a second one

Where Gaius sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 74,127 children born in 2025 and it's an even bet that one of them is another Gaius. In a class of 30 the chance is Under 1%.

When Gaiuss were born

Half of everyone ever recorded as Gaius was born before 2014 — so the typical Gaius is around 11 today.

Median birth year
2014
About 11 years old
Biggest decade
2010s
43.3% of all use
Born in the last 25 years
87.0%
A modern name
Recorded since 1950
492
People you could plausibly meet
Choose a decade

2010s — 43.3% of all recorded uses (229).

Is Gaius rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
+35
Places climbed
Rank vs 5 years ago
+3
Places climbed
Rank vs 10 years ago
+2,221
Places climbed
Births vs 10 years ago
2.07×
More babies than then
Share of its own peak
73.8%
Peak was 2014 (42)
Years since peak
11
Years
Year-to-year steadiness
Volatile
36.3% average annual change
Best rank ever
#2,823
2014

Spellings of Gaius

Gaius is not the most common spelling — Darius is, with 52.5% against Gaius's 0.51%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Gaius is used

Across 1910–2025, Gaius was most concentrated in California — about 1 in — boys, against 1 in 1,180,621 across all states with data. It was least common in Texas (1 in —).

00 per 100,000

Most concentrated

  1. 1California1 in —
  2. 2Texas1 in —

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Gaius has too little recent state data to map, so this covers all years from 1910.

Gaius around the world

Where Gaius ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • England & Wales
    1996–2025
    #3,256
    in 2025
  • France
    2009–2009
    #5,632
    in 2009
  • Canada
    2011–2011
    #2,664
    in 2011

Popularity data from Office for National Statistics, Institut national de la statistique et des études économiques and Statistics Canada. ONS data under Open Government Licence v3.0. INSEE data under Licence Ouverte / Etalab 2.0. StatCan data under Statistics Canada Open Licence.

Gaius by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025
#3,597
Trend vs 5 yrs ago
Up 3
Best rank ever
#2,823
2014
Peak year
2014
42 that year
First recorded
1920
Last recorded
2025
All-time count
529
Count in 2025
31

Names similar to Gaius

Matched on shared beginnings and endings, similar length, and comparable popularity.

GainesAriusPiusGaigeTaviusSiriusZariusKaiusGaithXaviusCaiusEliusGailenGaitherCashiusDeariusAmariusKashiusDerriusJariusDeriusAzariusKassiusMathius

Sibling names for Gaius

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Gaius

Top names of 2014, Gaius's peak yearThe 2010s in fullOther names that peaked in 2014Boys' names starting with G