Given name & surname
Cayo
“cay”
Cayo is a surname from Spanish. It is used in English and Asturian.
Meaning & origin
How it developed
In Asturian usage, Cayo is a diminutive of ACADIO.
The story
Published U.S. birth records include this spelling as early as 2001. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Cayo through the years
- Babies since 1880
- 46
- 46 boys · 0 girls
- Most popular year
- 2018
- 8 babies
- 2025
- 0
- Outside the ranked list
- 2021–25 vs 2016–20
- —
- Too few births to compare
By the numbers
The most recent published U.S. birth count for boys is 7 in 2023. Later missing counts do not mean the name went unused. Its largest published annual count for boys was 8 in 2018. Published U.S. population figures for this spelling include 807 as a surname in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Cayo’s family of names
In Asturian usage, Cayo is a diminutive of ACADIO.
Inner ring: nicknames and forms · outer: across languages.
Nicknames & forms 1
Diminutives, pet forms, short forms and variants used alongside the name.
Across languages 1
Equivalents and cognates in other languages, plus older forms it grew from.
See also 2
Names our sources mention alongside this one. They are related in story or meaning, not forms of this name.
People named Cayo
Listed by how widely each person is written about, which says nothing about the name itself.
Similar names
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