UK boy's name
Tadeas
A Czech masculine given name derived from Thaddaeus, meaning "heart".
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.
Tadeas is a boy's name in the UK records. People looking for Tadeas 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 2012, with 5 births.
This profile covers 8 England and Wales registrations across 2 recorded years from 2012 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 60% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 8 living people in the UK are called Tadeas. 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
- • Tadeas ranked #4749 for boys in England and Wales in 2018, with 3 registrations.
- • The name peaked in 2012, when 5 boys were registered as Tadeas.
- • About 8 living people in the UK are estimated to have Tadeas 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
2012
5 births
Estimated living
8
2026
Meaning
What does Tadeas mean?
The name Tadeas originated from the Greek name Thaddaios, itself derived from the Aramaic name Taddai, meaning "praise" or "confessor of God". It is the Bohemian and Czech form of the name Thaddeus, one of the twelve apostles of Jesus Christ mentioned in the New Testament.
The earliest recorded use of the name Tadeas dates back to the early Christian era, around the 1st century AD. It was a popular name among early Christians, particularly in regions with strong Greek cultural influence, such as parts of the Middle East and the Mediterranean.
One of the earliest known historical figures bearing the name Tadeas was Saint Thaddaeus, also known as Jude the Apostle, one of the twelve apostles of Jesus Christ. He is venerated as a saint in various Christian traditions, including the Catholic Church, Eastern Orthodox Church, and the Anglican Communion.
Another notable historical figure named Tadeas was Tadeas Hayek (1833-1900), a Czech Catholic priest and writer who played a significant role in the Czech national revival movement of the 19th century. He was a prolific author and translator, contributing to the preservation and promotion of the Czech language and culture.
In the 16th century, Tadeas Hájek z Hájku (1525-1600) was a Czech historian and writer known for his work "Kronika česká" (Czech Chronicle), a comprehensive history of the Czech lands and people. He served as a secretary to several Bohemian noblemen and played a crucial role in documenting the cultural and historical heritage of the region.
During the 17th century, Tadeas Soukup z Řenč (1635-1703) was a prominent Czech architect and builder who designed and constructed numerous churches, monasteries, and other significant buildings in the Baroque style throughout Bohemia and Moravia.
In more recent times, Tadeas Reichstein (1897-1996) was a Swiss chemist of Czech descent who received the Nobel Prize in Physiology or Medicine in 1950 for his research on hormones of the adrenal cortex, their chemical structure, and their effects on metabolic processes.
Sourced from namecensus.com.
Popularity
Tadeas over time
The chart below shows babies named Tadeas registered in England and Wales in the years where the name appears in the published records, from 2012 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 Tadeas, the clearest high point is 2012. The latest England and Wales figure is 3 births in 2018, compared with 5 at the peak.
Babies born per year
Decades
Tadeas by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Tadeas 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 | #4083 | 8 | 2 |
Related
Names similar to Tadeas
- Thomas 160,894
- Tyler 42,147
- Theo 40,594
- Toby 32,482
- Theodore 30,211
- Tommy 25,300
- Teddy 20,781
- Taylor 14,354
- Tobias 13,102
- Tom 9,822
- Tristan 9,171
- Timothy 6,200
FAQ
Tadeas: questions and answers
How popular is the name Tadeas in the UK right now?
In 2018, Tadeas was ranked #4749 for boys in England and Wales, with 3 births registered.
When was Tadeas most popular?
The peak year on record was 2012, with 5 babies registered as Tadeas in England and Wales.
What is the meaning and origin of Tadeas?
A Czech masculine given name derived from Thaddaeus, meaning "heart".
How many people are called Tadeas in the UK?
A total of 8 babies have been registered as Tadeas 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.