How Many People Are Named Theodor?
people named Theodor are alive in the United States today (estimate)
About 1 in 202,000 people in the US has this name
Based on 2,216 babies named Theodor in Social Security records from 1884 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
88 births
Trend
Stable (last 10 years)
📖 Name Origin & Meaning
Meaning:
German form of THEODORE, as well as a Scandinavian, Czech and Romanian variant of TEODOR. A famous bearer was American children's book creator Theodor Seuss Geisel (1904-1991), better known as Dr. Seuss.
Source of the meaning, origin, pronunciation and related names: Behind the Name.
⚧ Gender Distribution
All of the babies given the name Theodor in the records were boys.
👥 Age Distribution
The average person named Theodor alive today is about 23 years old, and 70% are under 30. Half of them were between 5 and 36 in 2025.
📈 Popularity Over Time
Theodor first appears in the records in 1884 and was given most often in 2022, to 88 babies. In 2025, 76 babies got the name.
Babies given the name each year, 1884 to 2025
🏆 Rank History
Theodor has never been one of the 100 most popular boys' names. Its best rank was #1,055, in 1887. In 2025 it ranked #2,004.
| Boys | |
|---|---|
| Rank in 2025 | #2,004 |
| Best rank | #1,055 (1887) |
| Years in the top 100 | None |
| Rank in its biggest decade | #2,556 in the 2010s |
📍 State-Wise Distribution
People named Theodor alive today, by the state where they were born (estimate; state records start in 1910).
More people named Theodor were born in California than in any other state: about 128 of those alive today. Compared with the national rate in the same years, Theodor was given 3.9 times as often in New York and 2.8 times in California.
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