Name Awesome

Petro

Boys' name

Form of Peter

Petro has been given to 160 babies in the U.S. since 1918. 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 1971, with 11 recorded.

Babies named Petro, 2015

1 in 740,000

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Petro: meaning, origin, and history

Form of Peter

Ancient Greek

What Petro means

Petro is a form of Peter.

Documented naming usage and pronunciation

Petro is used in Ukrainian and Esperanto.

Another recorded pronunciation is /ˈpe.tro/ for Petro.

Meaning behind the documented name family

Petro is a form of Peter. Peter has more than one origin or interpretation.

Origin, language, and formation

Petro is used in English, Albanian and Esperanto. Its origins include Ancient Greek.

Petro comes through Koine Greek Πέτρος.

Related names and everyday forms

Related names include Peter.

Pronunciation and spelling

In Esperanto, Petro is pronounced /ˈpetro/.

American usage and historical context

In the United States, 160 boys were recorded with the name Petro between 1918 and 2015. Its highest annual count was 11 in 1971; its best national rank was #2,914 in 1920.

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 Petro?

Petro had fewer than 5 recorded uses in 2025, so these figures use 2015, the last year it was published.

Among all babies, 2015
1 in 740,000
5 of 3,701,574 births
Among boys only
1 in 383,000
<0.01% of boys
Rank, 2015
Unranked
Fewer than 5 uses
Coin-flip room size
513,148 kids
Even odds of a second one

Where Petro 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 2015 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 513,148 children born in 2015 and it's an even bet that one of them is another Petro. In a class of 30 the chance is Under 1%.

When Petros were born

Half of everyone ever recorded as Petro was born before 1960 — so the typical Petro is around 65 today.

Median birth year
1960
About 65 years old
Biggest decade
1920s
29.4% of all use
Born in the last 25 years
9.4%
Mostly a past generation
Recorded since 1950
96
People you could plausibly meet
Choose a decade

1920s — 29.4% of all recorded uses (47).

Is Petro 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 1971 (11)
Years since peak
54
Years
Year-to-year steadiness
Volatile
26.0% average annual change
Best rank ever
#2,914
1920

Spellings of Petro

Petro is not the most common spelling — Peter is, with 72.0% against Petro's 0.02%.

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.

Petro around the world

Where Petro 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
    1927–2024
    #5,648
    in 2024
  • South Australia
    1950–2004
    #589
    in 2004

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.

Petro 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
#2,914
1920
Peak year
1971
11 that year
First recorded
1918
Last recorded
2015
All-time count
160
Count in 2025
Under 5

Names similar to Petro

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

PetarAstroPetraPetrosPetrPetiePetterPeteyDmytroMetroPetersonPetrePietroPetroniloPettusPetritPetrusMaestroPetPeterjohnCalistroPeterisPetrickPete

Sibling names for Petro

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 Petro

Top names of 1971, Petro's peak yearThe 1970s in fullOther names that peaked in 1920Boys' names starting with P