Thaddeus
Meaning not yet sourced
Editor’s note Down from #703 in 2015 to #797 in 2025 in the US
Boy’s name · Greek
What Thaddeus means
Meaning not yet sourced. Wiktionary has no word-by-word meaning for Thaddeus yet, and we don’t write our own.
Editor’s note Down from #703 in 2015 to #797 in 2025 in the US Worked out from the official US and England & Wales counts, not a meaning.
How popular is Thaddeus?
▲ 55 vs 2024
▲ 1384 vs 2024
US: Falling: down from #703 in 2015. England & Wales: Rising: up from #2483 in 2015.
Biggest US share so far: 1918, when 328 boys got the name (#307 that year). First in the US records in 1880.
How common
- About 1 in 5,440 baby boys in the US in 2025
- About 1 in 15,996 baby boys in England and Wales in 2025
“1 in N” divides by all listed births for that sex. The US list leaves out names given to fewer than 5 babies, and the UK lists leave out names given to 2 or fewer, so the real figure is a little rarer than shown.
Where in the US
Most popular in NE (0.68 per 1,000 boys), ID (0.58 per 1,000 boys), KS (0.57 per 1,000 boys) in 2025.
SSA state data, 2025. Share of all listed boys born in each state.
US vs UK
Thaddeus is #797 in the US and #1538 in England & Wales (2025).
| Rank 2025 | Babies | How common | Rank 2015 | |
|---|---|---|---|---|
| US | #797 | 314 | 1 in 5,440 | #703 |
| England & Wales | #1538 | 17 | 1 in 15,996 | #2483 |
| Scotland | – | – | – | – |
Same sex as this page (boys). SSA (US), ONS (England and Wales), NRS (Scotland).
Boy or girl?
In 2025, 99.9+% of US babies named Thaddeus were boys.
| Girls | Boys | |
|---|---|---|
| US 2025 | 0 | 314 |
| England & Wales 2025 | 0 | 17 |
| US all years since 1880 | 32 | 26,057 |
| England & Wales since 1996 | 0 | 185 |
Counts below the publishing threshold (US 5, UK 3) are not included.
Other spellings
Other spellings parents chose in 2025
- Thaddaeus10 US
- Thadeus6 US
Names that sound the same and differ by a letter or two, with baby counts for the same sex. US and E&W counts.
If you like Thaddeus
Boys
- Theodore#4Editor’s note Climbing fast in the US: #99 in 2015, #4 in 2025
- Leon#138“lion”*
- Evander#698“good man”*
- Niko#325Editor’s note First shows up in US records in 1962, with 5 babies
- Theo#82Editor’s note Climbing fast in the US: #405 in 2015, #82 in 2025
- Ambrose#735“immortal, divine”*
For a sister
- Thea#353“goddess”*
- Dorothy#421Editor’s note Up from #714 in 2015 to #421 in 2025 in the US
- Ophelia#264possibly “help, aid, succour”*
- Theodora#725“God s Gift”*
- Iris#61“rainbow”*
- Lena#279“the Large River”*
Picked from the US top 1,000 in 2025: names Wiktionary also files under Greek, whose US popularity since 1990 rose and fell most like Thaddeus’s. Rank is US 2025.
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