Thadeus
- US rank
- #10,695
- Syllables
- 2
- Peak
- #1,373 in 1918
6 babies were named Thadeus in the US in 2025.
Save adds it to your list. Vote moves it up the top voted names.
US births per million boys, 1912–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Thadeus you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- How commonAbout 1 in every 285,714 baby boys born in the US in 2025 was named Thadeus, 6 babies in all. In a typical school of 500 kids, your Thadeus would very likely be the only one.
- HistoryThadeus first shows up in US birth records in 1912, the first year at least 5 babies got it. It has been in use for 113 years since.
- Best yearIt was far more popular in 1918, when it ranked #1,373. Today it's #10,695, so it could be due a comeback.
- Then vs nowThadeus was 2.2× more common in 2000 than it is today. In 2000 it was given to about 1 in 131,579 baby boys; in 2025, about 1 in 285,714.
About the name Thadeus
Thadeus is a boy name of Greek and Latin origin. It has 7 letters and 2 syllables, starting with T and ending in “-eus”. US birth records list Thadeus for boys from 1912 to 2025, in 92 of those 114 years. Its best year was 1918, when it ranked #1,373 among boy names. In 2025 it ranked #10,695, with 6 babies.
Origin:Greek namesLatin names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1910s | 19 | 53,945 boys |
| 1920s | 14 | 72,046 boys |
| 1930s | 2.5 | 393,701 boys |
| 1940s | 1.9 | 526,316 boys |
| 1950s | 1.6 | 617,284 boys |
| 1960s | 2.6 | 386,100 boys |
| 1970s | 9.1 | 109,529 boys |
| 1980s | 6.5 | 154,083 boys |
| 1990s | 8.2 | 121,803 boys |
| 2000s | 8.7 | 115,207 boys |
| 2010s | 5.0 | 198,807 boys |
| 2020s | 2.2 | 451,128 boys |
Other spellings of Thadeus
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 Thadeus
What is the origin of the name Thadeus?
Thadeus has Greek, Latin roots in our records. Other Greek names include Theodore, Mateo, Lucas.
Is Thadeus a boy or girl name?
Thadeus is a boy name.
How popular is the name Thadeus?
Thadeus ranked #10,695 for US boys in 2025, given to 6 babies. Its best year was 1918 (#1,373).