Constancio

Boys' name

From Latin Cōnstantius; literal meaning unconfirmed

Constancio has been given to 32 babies in the U.S. since 1928. 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 1952, with 6 recorded.

Babies named Constancio, 1977

1 in 635,000

Constancio over time, 1880–2025

Boys

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Constancio: meaning, origin, and history

From Latin Cōnstantius; literal meaning unconfirmed

Latin

What Constancio means

Constancio is a given name.

Origin, language, and formation

Constancio is used in Spanish. Its origins include Latin.

Constancio comes through Latin Cōnstantius.

Pronunciation and spelling

In Spanish, Constancio is pronounced /konsˈtanθjo/.

American usage and historical context

In the United States, 32 boys were recorded with the name Constancio between 1928 and 1977. Its highest annual count was 6 in 1952; its best national rank was #3,430 in 1952.

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 Constancio?

Constancio had fewer than 5 recorded uses in 2025, so these figures use 1977, the last year it was published.

Among all babies, 1977: 1 in 635,000; 5 of 3,176,294 births
Among boys only: 1 in 329,000; <0.01% of boys
Rank, 1977: Unranked; Fewer than 5 uses
Coin-flip room size: 440,329 kids; Even odds of a second one

Where Constancio 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 1977 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 440,329 children born in 1977 and it's an even bet that one of them is another Constancio. In a class of 30 the chance is Under 1%.

When Constancios were born

Half of everyone ever recorded as Constancio was born before 1952 — so the typical Constancio is around 73 today.

Median birth year: 1952; About 73 years old
Biggest decade: 1970s; 34.4% of all use
Born in the last 25 years: 50.0%; Spread across generations
Recorded since 1950: 22; People you could plausibly meet

Choose a decade

1970s — 34.4% of all recorded uses (11).

Is Constancio 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 1952 (6)
Years since peak: 73; Years
Year-to-year steadiness: Not enough data; Too few years
Best rank ever: #3,430; 1952

Spellings of Constancio

Constancio is not the most common spelling — Constantino is, with 97.9% against Constancio's 2.1%.

Constantino97.9%1,490
Constancio2.1%32

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.

Constancio 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: #3,430; 1952
Peak year: 1952; 6 that year
First recorded: 1928
Last recorded: 1977
All-time count: 32
Count in 2025: Under 5

Names similar to Constancio

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

Constantin Connelly Consepcion Confesor Connolly Concetto Converse Conagher Fulgencio Laurencio Valencio Conri Consuelo Condredge Connard Conwell Gaudencio Connley Conlee Conell Joseignacio Connall Simplicio Enemencio

Sibling names for Constancio

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

For a sister

Randy Oralia Kathlyn Louann Nanci Marita Jacalyn Roseanna

For a brother

Val Artis Jacky Ike Dannie Williams Stanton Denis

Explore around Constancio

Top names of 1952, Constancio's peak year The 1950s in full Other names that peaked in 1952 Boys' names starting with C