Theodor is a distinctive choice, ranked #606 in 2025. Your child is likely to be the only Theodor in their class.
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UK Rank 2025
#606
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About the Name Theodor
Theodor has held its ground, ranked #606 in 2025 and never far from its best of #514 in 2021 — a name with lasting rather than trend-driven appeal. The name has been a consistent presence in UK records since 1996.
Theodor is uncommon in the UK, so your child is very likely to be the only Theodor in their class.
Theodor Haubach — Theodor Haubach was a German journalist, SPD politician, and resistance fighter against the Nazi régime.
Theodor Riphaen — Theodor Riphaen or Theodor Riphan was a Roman Catholic prelate who served as Auxiliary Bishop of Cologne.
Biographical summaries are shortened from Wikipedia and are used under the CC BY-SA 4.0 licence; those summaries remain available under that same licence.
Frequently Asked Questions
Common questions about the name Theodor
Unlikely. With around 63 UK babies named Theodor per year, your child will almost certainly be the only Theodor in their class, and possibly the only one in the whole school.
Theodor has been fairly steady, ranked #606 in 2025 against #627 in 2020. Its best recorded position was #514 in 2021.
Theodor is a distinctive choice sitting outside the mainstream UK top names. Parents choosing less common names often find their children appreciate the individuality as they grow up, rarely needing to add an initial to distinguish themselves.
Notable people named Theodor include: Theodor W. Hänsch and Theodor Mommsen. Short summaries for each appear below.
Theodor does not appear in the US top 1,000 baby names, making it a distinctively British choice — your child is unlikely to encounter American Theodors in the wild.
63
UK babies named Theodor (2025)
< 1
Expected classmates with this name (class of 28)
~0.0
In a school of 600
↑ 21 places
Rank change (last 5 years)
🏫 Who else is in the room?
In a typical UK class of 28, highlighted children share the name Theodor
Almost certainly the only Theodor in the class
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UK Popularity (1996–2025)
Rank and birth count · ONS official data
No US data available for this name
✨ Similar names to Theodor
Names with a similar style — each with their own classroom story