Caius

“Gaio”

Latin origin · Boy name

♂ 97% boys♀ 3% girls

#1347US 2023

140Births / yr

↓Falling

1.4kAll-time births

📅 Since 199400.01% of births at peak

How to pronounce Caius

KEYE·UHS

/ˈkaɪ.ˈəs/ · stress on KEYE · 2 syllables

“Gaio”

Latin origin · Boy name

What does Caius mean and where does it come from?

Caius (or Gaius) is a Latin name that was common in ancient Rome. It is derived from the Latin 'Gaius,' often interpreted to mean 'rejoice'. The name is notable for historical figures such as Gaius Julius Caesar and Gaius Octavius. It has seen revival in modern times, particularly among parents seek

Cultural significance

Caius has been a cherished name across cultures, particularly in Latin-speaking communities, where it reflects values of gaio.

Peak popularity

Reached #1210 in 2020 — currently #1347 in the US.

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How else can you spell Caius?

Same sound, different look — useful if you want something slightly more distinctive

Kaius

Spelling variant

What middle names flow best with Caius?

Caius works best with short, strong middle names — one or two syllables keep the full name from becoming a mouthful

Caius Grace

How popular is Caius right now?

Falling — down 65 spots — currently #1347 in the US out of 135.5k tracked names

US Trend 2000–2023#1347 · Top 0.99%

2000

2005

2010

2015

2020

2021

2022

2023

Year	US Rank	Births	vs Prior Year
2023	#1347	140	▼ down 65 · -7% births
2022	#1282	150	▲ up 58 · +9% births
2021	#1340	138	▼ down 130 · -12% births
2020	#1210	156	▲ up 83 · +13% births
2015	#1293	138	▲ up 1249 · +182% births
2010	#2542	49	▲ up 1502 · +113% births
2005	#4044	23	▲ up 2700 · +130% births
2000	#6744	10	—

Name Popularity Timeline

Popularity Statistics for Caius

Best Year2020Rank #1210

Peak Count156

Average Rank#2475

Current Trend↗Rising

Data Range2000 - 20238 years

The story of Caius

Caius is a relatively modern name, first appearing in US records in 1994. With 1,436 total births recorded, Caius remains relatively uncommon. The name has grown more popular over time, rising from #6744 in 2000 to #1347 in 2023.

Names that peaked alongside Caius in 2020:

Liam Noah Oliver Elijah William

Caius by decade

Caius peaked in the 2020s. See all 2020s names →

Decade	Births
1990s	12
2000s	205
2010s ★	1,063
2020s	156

💎With 1,436 total births, Caius is an uncommon but established name.

What are good nicknames for Caius?

Common

CaiCaiusieCaiusy

Famous people named Caius

Caius (Renaissance scholar)

Caius used this name during the Latin revival of the Renaissance, reinforcing its classical prestige.

Caius (historical Roman figure)

Caius carried this name during the Roman Empire, giving it the enduring weight of classical civilization.

Caius (Roman senator or statesman)

Caius held this name during the height of Roman civilization, when Latin names spread across Europe.

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Celebrity Names

What celebrities named their babies in 2025

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What names sound and feel like Caius?

Based on sound, origin, and style — parents who love Caius also consider these

Latin · Meaning 'hollow', traditionally

Latin · God has heard

How is Caius written in other languages?

What are the girl versions of Caius?

Gaja POLISH Kaja POLISH Gaja SLOVENE Kaja SLOVENE Cai ARTHURIAN ROMANCE Kay ARTHURIAN ROMANCE Cai WELSH MYTHOLOGY Kay WELSH MYTHOLOGY

Common questions about the name Caius

What does the name Caius mean?

Caius means "Gaio" — a name rooted in Latin tradition that carries both historical depth and timeless appeal. The meaning reflects values that have made this name endure across generations.

How popular is the name Caius?

Caius is currently a distinctive and less common name as a boy name in the US and is holding steady in popularity, a reliable classic that parents consistently choose.

What is the cultural origin of Caius?

Caius originates from Latin tradition. Latin names tend to carry strong cultural heritage and have spread across the world through migration, literature, and religion over centuries.

How do you pronounce the name Caius?

Caius is a two-syllable name pronounced K AY1 AH1 S. The pronunciation is straightforward for English speakers, and the name reads clearly on paper — an important practical consideration for parents.

Is Caius a common or rare name?

Caius is a distinctive choice that balances familiarity with individuality. It strikes a balance between standing out and fitting in.