Given name & surname

Casto

Casto is a surname.

Meaning & origin

A reliable meaning for Casto isn’t established in our sources yet. Rather than guess, we show what is recorded: how the name is used, how often, and the names it’s connected to.

The story

Published U.S. birth records include this spelling as early as 1915. This is the earliest published observation available here, rather than a date for the name’s origin.

From dated birth records

Casto through the years

Babies since 1880
21
21 boys · 0 girls
Most popular year
1940
6 babies
2025
0
Outside the ranked list
2021–25 vs 2016–20
—
Too few births to compare
0246192019401960198020002025Highest share 19150.0
Casto in U.S. Social Security birth records, 1915–2025, per million boys born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.

By the numbers

The most recent published U.S. birth count for boys is 5 in 1978. Later missing counts do not mean the name went unused. Its largest published annual count for boys was 6 in 1940. Published U.S. population figures for this spelling include 219 as a first name in 2020; 7,455 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.

CastoCastuloCasta

The ring: across languages.

Hover or tab through the constellation to see how each name is related. Bigger dots are names more people in the U.S. share.

Across languages 2

Equivalents and cognates in other languages, plus older forms it grew from.

Similar names

If you love Casto, these share its style, era, origin or sound, from outside its own family.

 

Karel

“a joyous song; a small, strong woman” · “a free man”

11Very rareRising fast

>99% boys

 

Cayetano

“inhabitant of Gaeta”

13Very rareRising fast

>99% boys

 

Catarino

Catarino is a masculine given name. It is used in Portuguese.

11Very rareRising fast

>99% boys

 

Carvel

“from the village near the swamp”

0Not recently recorded

>99% boys

 

Coburn

“from the rooster's stream”

11Very rareRising fast

>99% boys

 

Karon

“one who is pure; virginal”

23RareCooling

>99% boys

Germanic

Carles

Carles is a masculine given name from Latin, ultimately from Proto-Germanic. It is used in Spanish and Catalan.

0Not recently recorded

>99% boys

Greek

Aniceto

“one who remains unconquered”

11Very rare

>99% boys

Sibling ideas

Names that share Casto’s feel without repeating its first letter or rhyming with it.

A brother for Casto