Petrus
Petrus is a boy's name that peaked in 2012, when it was the 12,274th most popular in the United States. It has not appeared in the national data since 2012. About 5 Petruses are alive in the United States today, and half of them are over 13.
Popularity, 1880–2025
boys named Petrus
By the numbers
- Total US births
- 5
- Estimated living today
- 5
- Median age today
- 13
- Peak year
- 2012
- Best rank
- 12,274th
- Rank in 2025
- unranked
- First recorded
- 2012
Notable Petruss
- Petrus Apianus (1495–1552)German astronomer, mathematician and cartographer
- Petrus Plancius (1522–1622)Dutch-Flemish astronomer, cartographer and clergyman
- Petrus Christus (1425–1475)Flemish painter (c.1410-1475)
- Petrus Ramus (1515–1572)French philosopher
- Hendrik Petrus Berlage (1856–1934)Dutch architect
- Petrus Camper (1722–1789)Dutch scientist
- Petrus Peregrinus de Maricourt (1240–1300)early investigator of magnetism
- Petrus Alphonsi (1062–1140)Spanish writer, astronomer
People named Petrus with articles in the most Wikipedia languages. Data from Wikidata (CC0).
Names of 2012
The most popular boys’ names the year Petrus peaked:
Petrus elsewhere
| Country | Spelling | Births | Best rank |
|---|---|---|---|
| France boys | Petrus | 880 | 223rd |
| England and Wales boys | Petrus | 6 | 4,527th |
Counts come from each country's own records and are not comparable with the US figures above, which cover different years and a different definition of a recorded name. Where a country writes the name several ways, the spellings are added together and the most common is shown. A row marked name registrations is counting something else: Portugal ranks each of a child's two given names separately, so a girl registered Maria Leonor is in both the Maria row and the Leonor row, and that figure is not a number of children.
Petrus by city
| City | Years | Births | Best rank |
|---|---|---|---|
| Berlin boys | 2017–2023 | 2 | 566th |
One city over a few years, so these are much smaller numbers than the national ones above and not comparable with them.
Petrus among the living
How many people each country's register counts under the name, rather than how many were given it in any one year. Each register was read on one date, and they are not the same date.
| Country | Spelling | First forename | Any forename |
|---|---|---|---|
| the Netherlands boys | Petrus | 82,114 | 235,306 |
| the Netherlands girls | Petrus | 10 | 3,984 |
| Finland boys | Petrus | 860 | 1,343 |
Among girls in the Netherlands this is mostly a middle name: of the 3,984 who carry it, 10 go by it.
A count of people on a register – the Netherlands on 1 January 2018, Finland on 4 August 2026 – and not of births, so it cannot be compared with the figures above. Names with very few bearers are withheld, and a dash in the first-forename column means the register would not say rather than that nobody goes by it.
Related names
Petrus against another name
Two names on one chart, with the year one overtook the other.
Try it on yourself
Source: US Social Security Administration, national and state baby-name files, 1880–2025. Counts include only births registered with the SSA, and names with fewer than five births in a year are not published. The living estimate applies SSA cohort life tables to those births; it counts people born in the United States, so it misses anyone who arrived later and anyone who has left.