Thaddeus
Boy name · #797 in 2025 · Uniqueness 59/100
Thaddeus is currently the #797 boy name in the United States — 314 babies received it in 2025. A decade ago it stood at #703, so the name has been falling over the past ten years. Roughly one in every 5,732 boys born in 2025 was named Thaddeus.
Babies named Thaddeus per year, 1880–2025. Source: SSA.
The 145-year story
Thaddeus first appears in the Social Security records in 1880, when 12 boys received the name. Its peak came in 2016, when 416 boys were named Thaddeus — good for #638 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Unlock the 5-year forecast and compare Thaddeus against up to 5 other names.
Uniqueness: will there be another Thaddeus in class?
Thaddeus scores 59 out of 100 on our uniqueness scale, which blends current rarity with five-year momentum — putting it in the "distinctive" band. That middle band is the sweet spot many parents hunt for: recognizable without being everywhere.
Where Thaddeus is most common
Geography matters for names, and Thaddeus is no exception. In 2025 the states with the most Thaddeuss were TX (26), PA (19), CA (16), OH (15), FL (13). Raw counts naturally favor populous states, but the spread still hints at where the name is part of the local naming culture.
Names like Thaddeus
Statistically, parents drawn to Thaddeus tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Marcellus, Santos, Tomas, Theophilus, and Jamison.
MarcellusSantosTomasTheophilusJamisonKendrickMosesAmadeus
Rank history (last 25 years)
| Year | Babies named Thaddeus | Rank |
|---|---|---|
| 2025 | 314 | #797 |
| 2024 | 285 | #852 |
| 2023 | 260 | #893 |
| 2022 | 309 | #808 |
| 2021 | 295 | #817 |
| 2020 | 297 | #783 |
| 2019 | 325 | #743 |
| 2018 | 344 | #703 |
| 2017 | 387 | #660 |
| 2016 | 416 | #638 |
| 2015 | 358 | #703 |
| 2014 | 328 | #730 |
| 2013 | 280 | #796 |
| 2012 | 231 | #898 |
| 2011 | 223 | #906 |
| 2010 | 198 | #994 |
| 2009 | 191 | #1020 |
| 2008 | 211 | #952 |
| 2007 | 228 | #883 |
| 2006 | 191 | #974 |
| 2005 | 192 | #917 |
| 2004 | 189 | #904 |
| 2003 | 183 | #909 |
| 2002 | 233 | #745 |
| 2001 | 214 | #788 |
Frequently asked questions
Is Thaddeus a popular boy name?
Thaddeus ranked #797 among boys in 2025 with 314 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #703.
When was the name Thaddeus most popular?
Thaddeus peaked in 2016, when 416 American boys received the name (ranked #638 that year). Since 2016 the name has declined from that high.
How rare is the name Thaddeus?
In 2025, roughly 1 in 5,732 newborn American boys was named Thaddeus. It scores 59/100 on our uniqueness scale (rarity blended with momentum), which we classify as "distinctive".
Data source: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.