Rising since 1985, #1,992 for boys today.
Popularity of Theodor since 1884
Babies named Theodor per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1880s | 10 |
| 1890s | 6 |
| 1900s | 0 |
| 1910s | 110 |
| 1920s | 139 |
| 1930s | 120 |
| 1940s | 113 |
| 1950s | 139 |
| 1960s | 124 |
| 1970s | 79 |
| 1980s | 98 |
| 1990s | 127 |
| 2000s | 189 |
| 2010s | 492 |
| 2020s | 470 |
Meaning & origin
Theodor is a strong, classic name with deep roots in Greek and Germanic tradition. Its ranking of 1992 in 2025 reflects a modest but consistent usage, with a frequency of approximately 1 in every 22,475 newborn boys. The name's trajectory has been rising since 1985, and while its peak year was as recent as 2022, it maintains steady appeal. Historically, its earliest recorded use in the United States dates to 1884, indicating a long-standing presence. The top states for Theodor include Massachusetts, Pennsylvania, and Ohio, suggesting a concentration in regions with significant German-American heritage. This name offers a distinguished alternative to the more common Theodore, with the same meaningful etymology and familiar nicknames like Theo.
Theodor is a German and Scandinavian form of Theodore, derived from the Greek name Theodoros, from theos (god) and doron (gift). It has been used in German-speaking countries since the Middle Ages and gained prominence through various saints and royalty. In Scandinavia, it was adopted in the 19th century and remains a classic choice.
Where Theodor is most popular
Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.
“Theodor” around the world
Where Theodor lands in the latest official birth statistics abroad, matched to the U.S. spelling.
France
10
babies in 2024
Ireland
5
babies in 2025
Quebec
12
babies in 2025
Sources: INSEE (France) · CSO Ireland (Ireland) · Retraite Québec (Quebec).
Nicknames & variants
Nicknames: Theo, Ted, Teddy
Sibling names for Theodor
Names that share Theodor's style, for a brother or sister.

