Masterpiece Generator Name Generator
How popular is the name Theodor?
Births per year, rank history and how many Theodors are alive today.
Theodor (male) is an uncommon spelling of the boys' name Theodore in England and Wales, ranked 606th in 2025 with 63 babies given the name. This spelling of the name peaked in 2021, when 76 babies were given the name, the 514th most popular that year. Its fortunes dipped to rank 651 in 2023 before climbing back to the 606th place it holds today. Numbers have been stable in recent years.
Across all spellings of the name, the Theodore you are most likely to meet is around 5 years old. Half of all Theodores born in England and Wales are between 4 and 11, and there are at least 34,000 of them alive today. If you walk into a room of 100 males, there's roughly an 11% chance that at least one of them will be called Theodore.
How many babies are named Theodor each year?
Includes all spellings: Theodor, Theodore. Figures before 1996 are estimates.
Where does the Theodor spelling rank?
Where does the Theodore spelling rank?
Where this data comes from
Figures from 1996 onwards are the Office for National Statistics' annual baby-name registrations for England and Wales, which record every name given to three or more babies in a year. Figures before 1996 are estimates: the ONS published only top-100 rankings at ten-year intervals back to 1904, so counts for those years are modelled from the rankings, calibrated against Douglas Galbi's long-run research into English name frequencies, and shown with an uncertainty band. Estimates of living bearers combine these birth figures with national life tables and ONS mid-year population estimates.
One limit worth naming: these figures count names as registered at birth. Anyone who changes their name later in life - including trans people, and anyone who adopts a different name by deed poll or simply by use - is not reflected here. Birth registrations record where a name began, not the name a person lives with.
Common questions
When was the name Theodor most popular?
The most popular form of the name, Theodore, peaked in 2021, when 2,965 babies in England and Wales were given the name. The Theodor spelling itself peaked in 2021, with 76 babies.
How many people are called Theodor?
At least 34,000 people named Theodor in any spelling born in England and Wales are alive today.
How old is the typical Theodor?
Most living Theodors are between 4 and 11; the most common age is about 5.
Is Theodor becoming more or less popular?
Broadly steady in recent years.