Meaning & origin
How it developed
In English usage, Theadore developed from Θεόδωρος.
The story
Published U.S. birth records include this spelling as early as 1880. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Theadore through the years
- Babies since 1880
- 4,005
- 4,005 boys · 0 girls
- Most popular year
- 1927
- 91 babies
- 2025
- 5
- #13,688 for boys
- 2021–25 vs 2016–20
- +100%
- Rising fast
By the numbers
In 2025, this name appeared in 5 U.S. birth records for boys, ranking No. 13,688 among boys’ names. The recent annual counts are too incomplete to establish a ten-year comparison. Its largest published annual count for boys was 91 in 1927. Published U.S. population figures for this spelling include 800 as a first name in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Theadore’s family of names
In English usage, Theadore developed from the Ancient Greek form Θεόδωρος.
The ring: across languages.
Across languages 1
Equivalents and cognates in other languages, plus older forms it grew from.
Similar names
If you love Theadore, these share its style, era, origin or sound, from outside its own family.
Isidore
“a gift of Isis”
>99% boys
Eugene
“a wellborn man”
>99% boys
Cleon
“a well-known man”
>99% boys
Porfirio
“refers to a purple coloring”
>99% boys
Odell
“a sweet melody” · “one who is wealthy”
98% boys · 2% girls
Christ
“[the] anointed [one]”
98% boys · 2% girls
Giles
“resembling a young goal”
>99% boys
Alpha
Alpha is used as a given name and a surname. One Greek interpretation is “the firstborn child; the first letter of the Greek alphabet.”
89% boys · 11% girls