Skip to content
BrazilNames BrazilNames
PT

Meaning of the nameCayo

Cayo is a spelling of the name Caio.

Meaning

The meaning of Cayo is not known for certain. No reliable source documents it, so we give none; below are the origin of the spelling and the official figures.

People (2022)
2,742
Rank in Brazil
#4,128
Median age
17 years
2010 Census
1,373
people

Cayo in the 2022 Census

People with the first name Cayo, by the decade they were born. In the chart, 70 = the 1970s and 20+ = 2020 to 2022. The largest group was born in the 2000s (1,028 people).

20 women 2,722 men

Source: IBGE, 2022 Demographic Census, Nomes no Brasil. The census counts the first name of people alive in 2022; small counts are not published, and the first group covers everyone born before 1940. How to read these data.

Where the name Cayo is most common

States with the highest share of people named Cayo in the population, in the 2022 Census.

  1. Rio de Janeiro 0.003%
  2. Pernambuco 0.002%
  3. Goiás 0.002%
  4. Ceará 0.001%
  5. Pará 0.001%
All states
StatePeople% of population
Rio de Janeiro4380.003%
São Paulo4310.001%
Minas Gerais2690.001%
Pernambuco1660.002%
Ceará1200.001%
Pará1150.001%
Goiás1130.002%
Paraná1060.001%
Bahia1020.001%
Maranhão980.001%
Paraíba860.002%
Alagoas860.003%
Espírito Santo760.002%
Distrito Federal730.003%
Rio Grande do Norte720.002%
Santa Catarina700.001%
Rio Grande do Sul470.000%
Piauí440.001%
Mato Grosso410.001%
Sergipe410.002%
Mato Grosso do Sul400.002%
Amazonas370.001%
Tocantins210.001%
Amapá150.002%

States with fewer than 15 people with the name are not shown: IBGE does not publish those counts.

The spelling Cayo

Keeps the C of Caio and replaces the I with Y.

About the name Caio

Caio comes from the Latin Caius, a variant of Gaius, an ancient Roman given name. Behind the Name considers the meaning of Gaius uncertain: it perhaps comes from the Latin gaudeo, 'to rejoice', or from an unknown Etruscan origin; Wiktionary also links it to gaudeō. Gaius appears in the New Testament, and Behind the Name lists Caio as the Portuguese and Italian form. In the 2022 Census, IBGE recorded 286,597 people named Caio, with a median age of 17. The name is almost always male and gained ground among people born in the 1990s and 2000s; Kaio, Kayo and Cayo write the same sound with K or Y.

Other spellings of Caio

SpellingPeople (2022)
Caio286,597
Kaio75,288
Kayo9,326
Cayo2,742

Sources

  1. Wiktionary: Caio · en.wiktionary.org · origin
  2. Wiktionary: Gaius (Latin) · en.wiktionary.org · origin
  3. Behind the Name: Gaius · behindthename.com · origin
  4. Behind the Name: Caio · behindthename.com · origin

Questions about the name Cayo

What does the name Cayo mean?

The meaning of Cayo is not known for certain: no reliable source documents it. So we give no meaning; the page shows the origin of the spelling and the official figures.

How many people are named Cayo in Brazil?

IBGE's 2022 Census recorded 2,742 people with the first name Cayo, which ranks it number 4,128 among the country's names. The largest group was born in the 2000s.

Is Cayo a boy's or a girl's name?

Cayo is a male name: in the 2022 Census, 20 women and 2,722 men had this name.

What is the origin of the name Cayo?

Cayo is a name of Latin origin. The sources are listed at the end of the page.

In which Brazilian state is Cayo most common?

Proportionally, in Rio de Janeiro: 0.003% of the state's population is named Cayo (438 people), according to the 2022 Census.

What are the other spellings of Cayo?

Caio, Kaio and Kayo. IBGE counts each spelling separately.

More names of Latin origin

See all

Spotted a mistake? Report a correction for Cayo with a source. See the methodology.