NameCensus.

UK name, mostly boys

Theo

Derived from the Greek name Theodoros, meaning "gift of God".

For 2026, the newest official UK baby-name figures on this page are from 2024. That release is the current official benchmark rather than a forecast.

Theo is mostly registered for boys in the UK records. People looking for Theo popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #12, with 2,387 babies registered with the name. Its strongest year in the published records was 2022, with 2,808 births.

This profile covers 40,594 England and Wales registrations across 29 recorded years from 1996 to 2024. The figures come from ONS England and Wales, NRS Scotland and NISRA Northern Ireland, 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 85% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 44,093 living people in the UK are called Theo. 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 2025 or 2026.

Key insights

  • Theo ranked #12 for boys in England and Wales in 2024, with 2,387 registrations.
  • The name peaked in 2022, when 2,808 boys were registered as Theo.
  • Theo ranks best in Scotland in the latest published regional snapshot for that area, where it placed #4 in 2024.
  • About 44,093 living people in the UK are estimated to have Theo as a first name, after adjusting past birth registrations with ONS life tables.
  • Across the England and Wales records shown here, 100.0% of Theo registrations are for boys.

Latest rank (E&W)

#12

2024

Births in 2024

2,387

Latest year

Peak year

2022

2,808 births

Estimated living

44,093

2026

Gender

Boy and girl registrations for Theo

In England and Wales birth records, Theo has been registered for both boys and girls. Across the years shown here, 100.0% of registrations are for boys and 0.0% 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.

100% boys
Boys40,594 (100.0%)Girls9 (0.0%)

Theo registered for boys

  • Ranked #12 in 2024
  • 2,387 boys registered in 2024
  • Peak: 2022 (2,808 births)

Theo registered for girls

  • Ranked #5,891 in 2024
  • 3 girls registered in 2024
  • Peak: 2021 (3 births)

Meaning

What does Theo mean?

Theo is a masculine given name with Greek origins, derived from the word "Theos" meaning "God." It has been a popular name throughout history, particularly in Christian cultures influenced by Greek and Latin traditions.

The name Theo can be traced back to ancient Greece, where it was used as a shortened form of names like Theodore, meaning "gift of God." It was also sometimes used as a standalone name, reflecting the reverence for gods in Greek mythology.

One of the earliest recorded instances of the name Theo can be found in the New Testament of the Bible, where it is mentioned as the name of a Christian disciple from Ephesus. This early association with Christianity likely contributed to its widespread adoption throughout Europe.

During the Byzantine era, the name Theo gained popularity among the ruling classes and aristocracy of the Eastern Roman Empire. Several Byzantine emperors, such as Theophilos (813-842 AD) and Theophanu (960-976 AD), bore variations of the name, reflecting its prestigious status.

In the Middle Ages, the name Theo maintained its popularity across Europe, particularly in areas influenced by the Greek Orthodox Church, such as Russia and the Balkans. Notable individuals with this name include Theo the Samaritan, a 9th-century scholar and translator, and Theo de Smyrna, a 13th-century Greek astronomer and mathematician.

During the Renaissance period, the name Theo was embraced by humanist scholars and intellectuals who drew inspiration from classical Greek and Roman culture. One of the most famous individuals with this name was the Dutch philosopher and theologian Theo van Doesburgh (1533-1609), a prominent figure in the Reformation movement.

In the 18th and 19th centuries, the name Theo gained traction in various European countries, including Germany, where it was popularized by the philosopher and writer Theo von Schön (1789-1856), and France, where the writer and politician Theo Fabre d'Olivet (1767-1825) made his mark.

Other notable individuals with the name Theo throughout history include the German composer Theo Richter (1824-1898), the Dutch painter Theo van Rysselberghe (1862-1926), and the Greek poet Theo Angelopoulos (1935-2012).

Overall, the name Theo has a rich history rooted in ancient Greek culture and Christianity, and it has been carried through the centuries by influential figures in various fields, ranging from religion and philosophy to art and literature.

Sourced from namecensus.com.

Popularity

Theo over time

The chart below compares boys and girls registered as Theo in England and Wales, from 1996 to 2024. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.

For Theo, the clearest high point is 2022. The latest England and Wales figure is 2,387 births in 2024, compared with 2,808 at the peak.

Babies born per year

BoysGirls
07021K2K3K199620102024

Decades

Theo by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Theo 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 #13 12,796 5
2010s #34 20,749 10
2000s #107 6,518 10
1990s #229 531 4

Geography

Where Theo is most common

The bars show the latest published local birth counts for Theo. They are useful for spotting where the name is showing up in real numbers, while the rank beside each bar shows how strongly it performs inside that region.

Theo ranks best in Scotland in the latest published regional snapshot for that area, where it placed #4 in 2024.

North West
380
East of England
324
Yorkshire and The Humber
289
Scotland
270
North East
155
Wales
140
Northern Ireland
125

Across the UK

Theo in Scotland and Northern Ireland

Scotland (NRS)

#4 in 2024

30 years of NRS records, 2,560 total registered

Northern Ireland (NISRA)

#5 in 2024

23 years of NISRA records, 1,203 total registered

Notable bearers

Famous people named Theo

  • Theo Green

    composer; sound designer

    British composer

    2000-

  • Theo Widdrington

    association football player

    association football player

    1999-

  • Theo Stevenson

    actor; film actor

    British actor

    1998-

  • Theo Roberts

    association football player

    association football player

    1998-

  • Theo Vukašinović

    association football player; rugby union player

    English rugby union lock (b. 1996)

    1996-

  • Theo Lewis

    association football player

    Footballer (born 1991)

    1991-

  • Theo Walcott

    writer; association football player

    English association football player (born 1989)

    1989-

  • Theo Robinson

    association football player

    association football player (born 1989)

    1989-

Related

Names similar to Theo

FAQ

Theo: questions and answers

How popular is the name Theo in the UK right now?

In 2024, Theo was ranked #12 for boys in England and Wales, with 2,387 births registered.

When was Theo most popular?

The peak year on record was 2022, with 2,808 babies registered as Theo in England and Wales.

What is the meaning and origin of Theo?

Derived from the Greek name Theodoros, meaning "gift of God".

How many people are called Theo in the UK?

A total of 40,594 babies have been registered as Theo across the 29 years of ONS England & Wales records shown here, plus 2,560 more in Scotland and 1,203 in Northern Ireland.

Where is Theo most common?

In the latest published local rankings, Theo ranks best in Scotland, where it placed #4 in 2024. The regional bars on this page use birth counts, so they also reflect the size of each region.

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.