Thaddeous
- US rank
- Unranked
- Syllables
- 3
- Peak
- #4,033 in 1962
0 babies were named Thaddeous in the US in 2025.
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US births per million boys, 1962–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Thaddeous you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- HistoryThaddeous first shows up in US birth records in 1962, the first year at least 5 babies got it. It has been in use for 63 years since.
- Best yearIts best year was 1962, when it reached #4,033.
About the name Thaddeous
Thaddeous is a boy name of Greek and Latin origin. It has 9 letters and 3 syllables, starting with T and ending in “-ous”. US birth records list Thaddeous for boys from 1962 to 2002, in 7 of those 41 years. Its best year was 1962, when it ranked #4,033 among boy names. It hasn't been given to 5 or more US babies in a year since 2002, so today it's a genuinely rare choice.
Origin:Greek namesLatin names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1960s | 0.3 | 3,333,333 boys |
| 1970s | 0.3 | 3,125,000 boys |
| 1980s | 0.7 | 1,470,588 boys |
| 1990s | 0.7 | 1,369,863 boys |
| 2000s | 1.4 | 731,707 boys |
Other spellings of Thaddeous
More Greek boy names
- Boy name: Theodore · gift of God
- Boy name: Mateo · gift of God
- Boy name: Lucas · man from Lucania
- Unisex name: Elias · my God is Yahweh
- Boy name: Sebastian · venerable
- Boy name: Leo · lion
- Boy name: Thomas · twin
- Unisex name: Miles · possibly gracious
Questions about the name Thaddeous
What is the origin of the name Thaddeous?
Thaddeous has Greek, Latin roots in our records. Other Greek names include Theodore, Mateo, Lucas.
Is Thaddeous a boy or girl name?
Thaddeous is a boy name.
How popular is the name Thaddeous?
Thaddeous is rare: fewer than 5 US boys got it in 2025, and it was last given to 5 or more in 2002. It peaked at #4,033 in 1962.