UK boy's name
Rein
A masculine given name of Germanic origin meaning "pure" or "counselor".
For 2026, the newest official UK baby-name figures on this page are from 2020. That release is the current official benchmark rather than a forecast.
Rein is a boy's name in the UK records. People looking for Rein popularity in 2026 should use the latest official release, which is 2020 in this profile. In that release it ranked #4608, with 3 babies registered with the name. Its strongest year in the published records was 2019, with 3 births.
This profile covers 6 England and Wales registrations across 2 recorded years from 2019 to 2020. The figures come from ONS England and Wales, so the page is a view of published baby-name registrations rather than a forecast or a live count of people using the name today.
The latest count is about 100% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 6 living people in the UK are called Rein. This uses published birth registrations from England and Wales, Scotland and Northern Ireland, then applies ONS national life tables to estimate how many are likely still alive. It does not forecast extra births for 2021 or 2026.
Key insights
- • Rein ranked #4608 for boys in England and Wales in 2020, with 3 registrations.
- • The name peaked in 2019, when 3 boys were registered as Rein.
- • About 6 living people in the UK are estimated to have Rein as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#4608
2020
Births in 2020
3
Latest year
Peak year
2019
3 births
Estimated living
6
2026
Meaning
What does Rein mean?
The name Rein originates from the German language and has its roots in the medieval period. It is derived from the Germanic word "reini," which means "pure" or "clean." The name was initially associated with purity, innocence, and virtue.
In the Middle Ages, the name Rein was particularly popular in German-speaking regions, such as Germany, Austria, and Switzerland. It was often given to children with the hope that they would grow up to be virtuous and upright individuals.
One of the earliest recorded references to the name Rein can be found in the Nibelungenlied, a famous German epic poem from the 13th century. In this work, Rein is mentioned as the name of a character, although details about his significance are scarce.
Throughout history, several notable individuals have borne the name Rein. One of the earliest was Rein von Hutten (1488-1523), a German knight and Reformer who fought alongside Martin Luther during the Protestant Reformation. Another prominent figure was Rein Stuurman (1669-1719), a Dutch maritime explorer who led several expeditions to the East Indies.
In the 19th century, Rein Theodor Rein (1838-1919) was a German botanist and explorer who conducted extensive research in Japan and contributed to the understanding of the country's flora. Rein Darniet (1867-1945), a Dutch painter, was also a notable figure during this period, known for his landscapes and cityscapes.
The 20th century saw the rise of Rein Adelskold (1911-1995), a Swedish author and playwright who wrote several acclaimed works, including the novel "The Seventh Seal," which was later adapted into a critically acclaimed film by Ingmar Bergman.
Despite its German origins, the name Rein has been adopted and used in various cultures and languages over time, though its meaning and associations with purity and virtue have remained consistent.
Sourced from namecensus.com.
Popularity
Rein over time
The chart below shows babies named Rein registered in England and Wales in the years where the name appears in the published records, from 2019 to 2020. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Rein, the clearest high point is 2019. The latest England and Wales figure is 3 births in 2020, compared with 3 at the peak.
Babies born per year
Decades
Rein by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Rein was a short-lived spike or a name that stayed in regular use. Average rank is calculated only from years where a published rank exists.
| Decade | Average rank | Total births | Years covered |
|---|---|---|---|
| 2020s | #4608 | 3 | 1 |
| 2010s | #4702 | 3 | 1 |
Related
Names similar to Rein
- Ryan 68,692
- Riley 37,992
- Robert 27,462
- Reuben 25,122
- Rhys 24,418
- Reece 24,329
- Rory 21,870
- Roman 16,609
- Ronnie 16,445
- Reggie 14,684
- Rowan 14,371
- Ralph 8,892
FAQ
Rein: questions and answers
How popular is the name Rein in the UK right now?
In 2020, Rein was ranked #4608 for boys in England and Wales, with 3 births registered.
When was Rein most popular?
The peak year on record was 2019, with 3 babies registered as Rein in England and Wales.
What is the meaning and origin of Rein?
A masculine given name of Germanic origin meaning "pure" or "counselor".
How many people are called Rein in the UK?
A total of 6 babies have been registered as Rein across the 2 years of ONS England & Wales records shown here.
Which records is this page based on?
The England and Wales timeline uses ONS baby-name records. Scotland figures come from NRS and Northern Ireland figures come from NISRA. Counts are registrations in published baby-name files. The living estimate uses those birth registrations with ONS national life tables.