Adelfo

Boys' name

Literal meaning not recorded; Ancient Greek origin

Adelfo has been given to 69 babies in the U.S. since 1989. 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 1993, with 8 recorded.

Babies named Adelfo, 2023

1 in 552,000

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Adelfo: meaning, origin, and history

Literal meaning not recorded; Ancient Greek origin

Ancient Greek

What Adelfo means

Adelfo is a given name.

Origin, language, and formation

Adelfo is used in Italian. Its origins include Ancient Greek.

American usage and historical context

In the United States, 69 boys were recorded with the name Adelfo between 1989 and 2023. Its highest annual count was 8 in 1993; its best national rank was #6,226 in 1993.

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 Adelfo?

Adelfo had fewer than 5 recorded uses in 2025, so these figures use 2023, the last year it was published.

Among all babies, 2023: 1 in 552,000; 6 of 3,314,783 births
Among boys only: 1 in 285,000; <0.01% of boys
Rank, 2023: Unranked; Fewer than 5 uses
Coin-flip room size: 382,940 kids; Even odds of a second one

Where Adelfo 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 2023 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 382,940 children born in 2023 and it's an even bet that one of them is another Adelfo. In a class of 30 the chance is Under 1%.

When Adelfos were born

Half of everyone ever recorded as Adelfo was born before 2003 — so the typical Adelfo is around 22 today.

Median birth year: 2003; About 22 years old
Biggest decade: 2000s; 63.8% of all use
Born in the last 25 years: 72.5%; A modern name
Recorded since 1950: 69; People you could plausibly meet

Choose a decade

2000s — 63.8% of all recorded uses (44).

Is Adelfo 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 1993 (8)
Years since peak: 32; Years
Year-to-year steadiness: Shifting; 13.1% average annual change
Best rank ever: #6,226; 1993

Spellings of Adelfo

Adelfo is not the most common spelling — Adolfo is, with 77.8% against Adelfo's 0.33%.

Adolfo77.8%16,195
Adel7.2%1,508
Adolf6.7%1,394
Adell5.0%1,049
Amelio2.9%614
Adelfo0.33%69

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.

Adelfo 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: #6,226; 1993
Peak year: 1993; 8 that year
First recorded: 1989
Last recorded: 2023
All-time count: 69
Count in 2025: Under 5

Names similar to Adelfo

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

Ademir Adelso Ademide Adeola Adewale Adetayo Adedayo Adedeji Adelino Adeeb Adeolu Adein Adeel Aderemi Adelio Adebayo Adeniyi Adeyemi Ademola Adeoluwa Adelmo Adekunle Adeline Ademar

Sibling names for Adelfo

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

Kaylene Jacquelynn Katlin Jessenia Brea Krysta Nikole Kalyn

For a brother

Rosendo Brandan Shaquille Tre Tylor Eloy Raheem Denton

Explore around Adelfo

Top names of 1993, Adelfo's peak year The 1990s in full Other names that peaked in 1993 Boys' names starting with A