UK name, mostly girls
Diaz
A Spanish surname derived from the medieval personal name Días, meaning "day".
For 2026, the newest official UK baby-name figures on this page are from 2015. That release is the current official benchmark rather than a forecast.
Also recorded as a boys' name in the UK, with 53 boys.
Diaz is mostly registered for girls in the UK records. People looking for Diaz popularity in 2026 should use the latest official release, which is 2015 in this profile. In that release it ranked #5730, with 3 babies registered with the name. Its strongest year in the published records was 2003, with 7 births.
This profile covers 65 England and Wales registrations across 14 recorded years from 1999 to 2015. 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 43% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 65 living people in the UK are called Diaz. 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 2016 or 2026.
Key insights
- • Diaz ranked #5730 for girls in England and Wales in 2015, with 3 registrations.
- • The name peaked in 2003, when 7 girls were registered as Diaz.
- • Diaz is also recorded for boys, but the girls side is the larger UK variant in these records.
- • About 65 living people in the UK are estimated to have Diaz as a first name, after adjusting past birth registrations with ONS life tables.
- • Across the England and Wales records shown here, 55.1% of Diaz registrations are for girls.
Latest rank (E&W)
#5730
2015
Births in 2015
3
Latest year
Peak year
2003
7 births
Estimated living
65
2026
Gender
Boy and girl registrations for Diaz
In England and Wales birth records, Diaz has been registered for both boys and girls. Across the years shown here, 44.9% of registrations are for boys and 55.1% are for girls.
These figures use the sex categories in the published baby-name files. They are useful for spotting how the name is used at registration, but they are not a live measure of gender identity or everyone living with the name today.
Diaz registered for boys
- Ranked #3,112 in 2023
- 6 boys registered in 2023
- Peak: 2003 (6 births)
Diaz registered for girls
- Ranked #5,730 in 2015
- 3 girls registered in 2015
- Peak: 2003 (7 births)
Meaning
What does Diaz mean?
The given name Diaz has its origins in the Spanish language. It is derived from the word "dia," which means "day" in Spanish. The name can be traced back to the medieval period in Spain, where it was likely used as a surname first.
One of the earliest recorded instances of the name Diaz comes from the 11th century. It appears in historical records and texts from that time, often in reference to Spanish nobility or military leaders. The name gained prominence during the Reconquista, the period of Islamic and Christian conflict in the Iberian Peninsula.
The name Diaz has been associated with several notable historical figures over the centuries. One of the most famous bearers of the name was Rodrigo Diaz de Vivar, better known as El Cid. He was a Castilian nobleman and military leader who lived from around 1043 to 1099. El Cid is celebrated in Spanish literature and folklore for his victories against the Moors during the Reconquista.
Another prominent figure with the name Diaz was Bartolomé Diaz, a Portuguese explorer who lived from around 1450 to 1500. He is credited with being the first European to sail around the southern tip of Africa, which he named the Cape of Good Hope in 1488.
In the 16th century, Juan Diaz de Solis, a Spanish navigator and explorer, is known for leading the first European expedition to reach the Río de la Plata in South America in 1516. He is also believed to have been the first European to discover the existence of the Amazon River.
Porfirio Diaz, a Mexican general and politician who served as the President of Mexico from 1876 to 1911, was another notable figure with the name Diaz. He was born in 1830 and died in 1915.
In the realm of literature, the name Diaz is associated with the Mexican writer Porfirio Diaz Machado, who was born in 1920 and is known for his novels and short stories exploring the culture and social issues of rural Mexico.
While the name Diaz has Spanish roots, it has been adopted and used in various cultures and regions around the world, particularly in Latin America and areas with significant Hispanic influence or population.
Sourced from namecensus.com.
Popularity
Diaz over time
The chart below compares boys and girls registered as Diaz in England and Wales, from 1999 to 2023. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Diaz, the clearest high point is 2003. The latest England and Wales figure is 3 births in 2015, compared with 7 at the peak.
Babies born per year
Decades
Diaz by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Diaz 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 | #5231 | 14 | 4 |
| 2000s | #3446 | 47 | 9 |
| 1990s | #3225 | 4 | 1 |
Related
Names similar to Diaz
- Daisy 49,435
- Danielle 13,507
- Darcie 11,010
- Darcy 10,516
- Darcey 9,708
- Delilah 9,098
- Demi 9,052
- Daniella 4,324
- Destiny 3,732
- Diana 3,258
- Dorothy 3,104
- Dolly 2,246
FAQ
Diaz: questions and answers
How popular is the name Diaz in the UK right now?
In 2015, Diaz was ranked #5730 for girls in England and Wales, with 3 births registered.
When was Diaz most popular?
The peak year on record was 2003, with 7 babies registered as Diaz in England and Wales.
What is the meaning and origin of Diaz?
A Spanish surname derived from the medieval personal name Días, meaning "day".
How many people are called Diaz in the UK?
A total of 65 babies have been registered as Diaz across the 14 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.