Masterpiece Generator Name Generator
How popular is the name Theodore?
Births per year, rank history and how many Theodores are alive today.
Theodore is one of the ten most popular boys' names in England and Wales, ranked 9th in 2025 with 2,638 babies given the name. This spelling of the name peaked in 2021, when 2,889 babies were given the name, the 11th most popular that year. It has risen strongly over the past decade. At least 32,000 babies have been named Theodore in England and Wales since 1996. Theodore is one spelling of a name also recorded as Theodor; the combined figures below cover every spelling. Common short forms of Theodore include Theo, Teddy and Ted.
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 Theodore each year?
Includes all spellings: Theodore, Theodor. Figures before 1996 are estimates.
Where does the Theodore spelling rank?
Where does the Theodor 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 Theodore most popular?
Theodore peaked in 2021, when 2,965 babies in England and Wales were given the name across all spellings.
How many people are called Theodore?
At least 34,000 people named Theodore in any spelling born in England and Wales are alive today.
How old is the typical Theodore?
Most living Theodores are between 4 and 11; the most common age is about 5.
Is Theodore becoming more or less popular?
Rising: it has climbed strongly over the past decade.