UK boy's name
Castro
A Spanish masculine name derived from Latin meaning "castle" or "fortified place".
For 2026, the newest official UK baby-name figures on this page are from 2018. That release is the current official benchmark rather than a forecast.
Castro is a boy's name in the UK records. People looking for Castro popularity in 2026 should use the latest official release, which is 2018 in this profile. In that release it ranked #4749, with 3 babies registered with the name. Its strongest year in the published records was 2013, with 3 births.
This profile covers 6 England and Wales registrations across 2 recorded years from 2013 to 2018. 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 Castro. 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 2019 or 2026.
Key insights
- • Castro ranked #4749 for boys in England and Wales in 2018, with 3 registrations.
- • The name peaked in 2013, when 3 boys were registered as Castro.
- • About 6 living people in the UK are estimated to have Castro as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#4749
2018
Births in 2018
3
Latest year
Peak year
2013
3 births
Estimated living
6
2026
Meaning
What does Castro mean?
The name Castro has its origins in the Latin language, derived from the Latin word "castrum," which means "fortified place" or "camp." The name likely emerged during the Roman Empire era, reflecting the military and strategic significance of fortified settlements or encampments.
Castro was initially used as a surname or a place name in regions that were part of the Roman Empire, particularly in the Iberian Peninsula (modern-day Spain and Portugal). As a given name, Castro gained popularity in these regions, particularly in Spain, where it became associated with strength, resilience, and a connection to ancestral roots.
One of the earliest recorded instances of the name Castro can be found in the writings of the Roman historian Livy, who mentioned a Roman general named Quintus Fabius Maximus Rullianus, also known as Quintus Fabius Maximus Castro, in the 3rd century BC. This suggests that the name was already in use during the Roman Republic era.
In the Middle Ages, the name Castro was particularly prevalent in the Iberian Peninsula, where it was borne by several notable figures. One example is Álvaro de Castro, a Portuguese explorer and navigator who accompanied Vasco da Gama on his historic voyage to India in the late 15th century.
The name also gained prominence in the religious sphere, with individuals such as Saint Pedro de Castro, a Spanish Dominican friar and Bishop of Salamanca in the 16th century, bearing the name.
During the colonial era, the name Castro spread to the Americas and other regions of the world through Spanish and Portuguese exploration and settlement. One notable figure was Vasco Núñez de Balboa, a Spanish explorer and conquistador born in 1475, who is credited with being the first European to cross the Isthmus of Panama and view the Pacific Ocean from the Americas.
In the 19th century, the name Castro gained further recognition with individuals like Cipriano Castro, a Venezuelan military officer and President of Venezuela from 1899 to 1908, and Fidel Castro, the famous Cuban revolutionary and politician who served as the Prime Minister and President of Cuba from 1959 until 2008.
Other notable figures with the name Castro include Juan José Castro, an Argentine military officer and politician who served as the 13th President of Argentina in the 19th century, and Américo Tomás, a Portuguese writer and poet born in 1894, who is considered one of the most important voices of Portuguese modernism.
Sourced from namecensus.com.
Popularity
Castro over time
The chart below shows babies named Castro registered in England and Wales in the years where the name appears in the published records, from 2013 to 2018. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Castro, the clearest high point is 2013. The latest England and Wales figure is 3 births in 2018, compared with 3 at the peak.
Babies born per year
Decades
Castro by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Castro 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 |
|---|---|---|---|
| 2010s | #4717 | 6 | 2 |
Related
Names similar to Castro
- Charlie 104,761
- Callum 65,796
- Connor 53,072
- Cameron 40,394
- Charles 33,091
- Christopher 26,849
- Caleb 15,553
- Corey 12,622
- Carter 11,505
- Cody 11,075
- Conor 10,298
- Christian 9,695
FAQ
Castro: questions and answers
How popular is the name Castro in the UK right now?
In 2018, Castro was ranked #4749 for boys in England and Wales, with 3 births registered.
When was Castro most popular?
The peak year on record was 2013, with 3 babies registered as Castro in England and Wales.
What is the meaning and origin of Castro?
A Spanish masculine name derived from Latin meaning "castle" or "fortified place".
How many people are called Castro in the UK?
A total of 6 babies have been registered as Castro 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.