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Cesidio

Boys' name

From Latin Caesidius; literal meaning unconfirmed

Cesidio has been given to 5 babies in the U.S. since 1919. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 1919, with 5 recorded.

Babies named Cesidio, 1919

1 in 422,000

Cesidio over time, 1880–2025

Boys
024618801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Cesidio: meaning, origin, and history

From Latin Caesidius; literal meaning unconfirmed

Deeper origin not confirmed in the cited records

What Cesidio means

Cesidio is a given name.

Origin, language, and formation

Cesidio is used in Italian.

Cesidio comes through Latin Caesidius and Latin Caesius.

American usage and historical context

In the United States, 5 boys were recorded with the name Cesidio between 1919 and 1919. Its highest annual count was 5 in 1919; its best national rank was #4,257 in 1919.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Cesidio?

Cesidio had fewer than 5 recorded uses in 2025, so these figures use 1919, the last year it was published.

Among all babies, 1919
1 in 422,000
5 of 2,110,182 births
Among boys only
1 in 196,000
<0.01% of boys
Rank, 1919
Unranked
Fewer than 5 uses
Coin-flip room size
292,534 kids
Even odds of a second one

Where Cesidio sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 1919 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 292,534 children born in 1919 and it's an even bet that one of them is another Cesidio. In a class of 30 the chance is Under 1%.

When Cesidios were born

Half of everyone ever recorded as Cesidio was born before 1919 — so the typical Cesidio is around 106 today.

Median birth year
1919
About 106 years old
Biggest decade
1910s
100.0% of all use
Born in the last 25 years
100.0%
A modern name
Recorded since 1950
0
People you could plausibly meet
Choose a decade

1910s — 100.0% of all recorded uses (5).

Is Cesidio rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
—
Not ranked then
Rank vs 5 years ago
New entry
Not ranked then
Rank vs 10 years ago
—
Not ranked then
Births vs 10 years ago
—
Not published both years
Share of its own peak
0%
Peak was 1919 (5)
Years since peak
106
Years
Year-to-year steadiness
Not enough data
Too few years
Best rank ever
#4,257
1919

Spellings of Cesidio

Cesidio is not the most common spelling — Cecilio is, with 69.3% against Cesidio's 0.14%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Cesidio around the world

Where Cesidio ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • France
    1967–1967
    #1,800
    in 1967
  • South Australia
    1968–1968
    #520
    in 1968

Popularity data from Institut national de la statistique et des études économiques and Consumer and Business Services (South Australia). INSEE data under Licence Ouverte / Etalab 2.0. CBS SA data under CC BY 4.0.

Cesidio by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#4,257
1919
Peak year
1919
5 that year
First recorded
1919
Last recorded
1919
All-time count
5
Count in 2025
Under 5

Names similar to Cesidio

Matched on shared beginnings and endings, similar length, and comparable popularity.

CesurCesearAmidioLocadioCustodioElidioHeladioLidioSadioCesareoEmedioAudioEvodioCescCesareAmedioAbundioElpidioLeocadioCesarioArcadioEmigdioEgidioIndio

Sibling names for Cesidio

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Cesidio

Top names of 1919, Cesidio's peak yearThe 1910s in fullOther names that peaked in 1919Boys' names starting with C