Given name & surname

Cassio

“one who is empty; hollow; vain”

Cassio is a variant of Cassius. One Latin interpretation is “one who is empty; hollow; vain.”

Meaning & origin

What it means

Cassio is a variant of Cassius. One Latin interpretation is “one who is empty; hollow; vain.”

Explained through its name family

Where it comes from

Cassio is a variant of Cassius. An origin associated with Cassius is Latin.

Explained through its name family

The story

Published U.S. birth records include this spelling as early as 2024. This is the earliest published observation available here, rather than a date for the name’s origin.

From dated birth records

Cassio through the years

Babies since 1880
16
16 boys · 0 girls
Most popular year
2024
9 babies
2025
7
#9,879 for boys
2021–25 vs 2016–20
—
Too few births to compare
02462025Highest share 20244.1
Cassio in U.S. Social Security birth records, 2024–2025, 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

In 2025, this name appeared in 7 U.S. birth records for boys, ranking No. 9,879 among boys’ names. The recent annual counts are too incomplete to establish a ten-year comparison. Published U.S. population figures for this spelling include 266 as a first name in 2020; 415 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.

Cassio’s family of names

In Italian usage, Cassio has a surname derivative in CASSINI. Cassio has a related form in Cassius. In Italian usage, Cassio has a conventional equivalent in the English form Cassius.

Walk Cassio’s family in the name graph

CassioCássioCassiusCassini

Inner ring: spellings · middle: nicknames and forms · outer: 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.

Nicknames & forms 1

Diminutives, pet forms, short forms and variants used alongside the name.

Spellings & scripts 1

The same name written differently, including transliterations into other scripts.

Across languages 1

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

People named Cassio

Listed by how widely each person is written about, which says nothing about the name itself.

Similar names

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

Modern

Kasion

0Not recently recorded

>99% boys

Modern

Kaikoa

22RareRising

>99% boys

Modern

Kaicyn

17Very rareRising fast

94% boys · 6% girls

Modern

Kasden

0Not recently recorded

>99% boys

Modern

Karlisle

0Not recently recorded

>99% boys

Modern

Kaysyn

23RareRising

92% boys · 8% girls

African · Modern

Kazi

“a hardworking man”

32RareRising fast

79% boys · 21% girls

Sibling ideas

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

A brother for Cassio

A sister for Cassio