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Delfin

Boys' name

The constellation Delphinus, through delphīnus

Delfin has been given to 280 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 1969, with 11 recorded.

Babies named Delfin, 2023

1 in 552,000

Delfin over time, 1880–2025

Boys
05101518801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Delfin: meaning, origin, and history

The constellation Delphinus, through delphīnus

Spanish

What Delfin means

Delfin belongs to the name family reached through Delfin → delphīnus. Its meaning is “the constellation Delphinus”.

Origin, language, and formation

Delfin is used in Tagalog. Its origins include Spanish.

Delfin comes through Latin delphīnus.

Related names and everyday forms

Related names include delphīnus.

Pronunciation and spelling

In Tagalog, Delfin is pronounced /delˈfin/.

American usage and historical context

In the United States, 280 boys were recorded with the name Delfin between 1919 and 2023. Its highest annual count was 11 in 1969; its best national rank was #2,486 in 1948.

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 Delfin?

Delfin 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 Delfin 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 Delfin. In a class of 30 the chance is Under 1%.

When Delfins were born

Half of everyone ever recorded as Delfin was born before 1965 — so the typical Delfin is around 60 today.

Median birth year
1965
About 60 years old
Biggest decade
1960s
22.9% of all use
Born in the last 25 years
8.2%
Mostly a past generation
Recorded since 1950
227
People you could plausibly meet
Choose a decade

1960s — 22.9% of all recorded uses (64).

Is Delfin 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 1969 (11)
Years since peak
56
Years
Year-to-year steadiness
Volatile
25.8% average annual change
Best rank ever
#2,486
1948

Spellings of Delfin

Delfin is not the most common spelling — Melvin is, with 46.2% against Delfin's 0.05%.

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.

Where Delfin is used

Across 1910–2025, Delfin was most concentrated in New Mexico — about 1 in 100,000 boys, against 1 in 1,429,256 across all states with data. It was least common in New York (1 in —).

01 per 100,000

Most concentrated

  1. 1New Mexico1 in 100,000
  2. 2New York1 in —

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Delfin has too little recent state data to map, so this covers all years from 1910.

Delfin around the world

Where Delfin 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
    1965–1976
    #1,798
    in 1976

Popularity data from Institut national de la statistique et des études économiques. INSEE data under Licence Ouverte / Etalab 2.0.

Delfin 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
#2,486
1948
Peak year
1969
11 that year
First recorded
1919
Last recorded
2023
All-time count
280
Count in 2025
Under 5

Names similar to Delfin

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

DelucaDelsinDelwynDeleonDelandDelijahDelaniDelvonDelossDelmanDelmonDelanteDelrayDelmusDeloydDelnoDeloisDelricoDelmoreDelaineDelaneyDelontaDelvisDelynn

Sibling names for Delfin

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 Delfin

Top names of 1969, Delfin's peak yearThe 1960s in fullOther names that peaked in 1948Boys' names starting with DFilipino Boy Names