Holding steady, #12,008 for boys today.
Popularity of Theadore since 1880
Babies named Theadore per year in U.S. Social Security records. Raw births topped out in 1927, but relative to how few babies were recorded back then, Theadore's real moment was 1905.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1880s | 47 |
| 1890s | 38 |
| 1900s | 137 |
| 1910s | 428 |
| 1920s | 770 |
| 1930s | 703 |
| 1940s | 592 |
| 1950s | 536 |
| 1960s | 323 |
| 1970s | 175 |
| 1980s | 110 |
| 1990s | 50 |
| 2000s | 28 |
| 2010s | 32 |
| 2020s | 36 |
Meaning & origin
Theadore is a variant spelling of Theodore, which has been in use since the late 19th century. Its first recorded year was 1880, and it peaked in popularity in 1905. In 2025, it ranked 12,008th with a 1-in-341,615 incidence, indicating it remains quite rare. The spelling variation likely arose as a respelling without changing the pronunciation, reflecting a trend for unique orthography. While it has never been common, Theadore has persisted steadily over the decades, appealing to parents seeking a distinctive twist on a classic name.
Theadore is a variant spelling of Theodore, derived from the Greek name Theodoros, meaning 'gift of God' (theos 'god' + doron 'gift'). This spelling, with an 'a' instead of 'o', emerged in the 19th century, possibly as an American innovation. It has seen sporadic use, never reaching the popularity of the standard form.
Nicknames & variants
Nicknames: Thea, Theo, Teddy
Variants: Theodore
Sibling names for Theadore
Names that share Theadore's style, for a brother or sister.
