Thaddaeus
Borrowed from Latin Thaddaeus, from Ancient Greek Θαδδαῖος (Thaddaîos), from Aramaic תַדַּי (Ṯaday).
Every Thaddaeus since 1924 — 1,045 of them. Popularity, births, and rankings for each year, from official Social Security records.
The story of Thaddaeus
Thaddaeus is rare for boys in the United States, ranked #8,185 in 2025 with 10 babies given the name. It is currently declining compared with a decade ago.
Since 1924, 1,045 American babies have been named Thaddaeus. Its peak came in 2005, when 29 newborns received the name — the signature sound of the 2000s.
The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Thaddaeus stood among all boys' names in any year, or use the compare tool to plot it against other names.
Thaddaeus year by year
Every year since 2001, and five-year steps back to 1880. Rank is within each sex.
| Year | Boys | Boys rank |
|---|---|---|
| 2025 | 10 | #8,185 |
| 2024 | 16 | #5,870 |
| 2023 | 15 | #6,186 |
| 2022 | 12 | #7,213 |
| 2021 | 22 | #4,611 |
| 2020 | 21 | #4,682 |
| 2019 | 14 | #6,373 |
| 2018 | 24 | #4,340 |
| 2017 | 22 | #4,578 |
| 2016 | 20 | #4,922 |
| 2015 | 16 | #5,720 |
| 2014 | 26 | #3,997 |
| 2013 | 19 | #4,957 |
| 2012 | 22 | #4,520 |
| 2011 | 19 | #4,963 |
| 2010 | 20 | #4,827 |
| 2009 | 15 | #6,052 |
| 2008 | 29 | #3,733 |
| 2007 | 20 | #4,784 |
| 2006 | 18 | #5,051 |
| 2005 | 29 | #3,444 |
| 2004 | 22 | #4,119 |
| 2003 | 16 | #5,020 |
| 2002 | 26 | #3,440 |
| 2001 | 28 | #3,220 |
| 2000 | 22 | #3,749 |
| 1995 | 19 | #3,542 |
| 1990 | 17 | #3,587 |
| 1985 | 24 | #2,288 |
| 1980 | 19 | #2,606 |
| 1975 | 13 | #3,063 |
| 1970 | 9 | #3,493 |
| 1965 | — | — |
| 1960 | — | — |
| 1955 | — | — |
| 1950 | — | — |
| 1945 | — | — |
| 1940 | — | — |
| 1935 | — | — |
| 1930 | — | — |
| 1925 | — | — |
| 1920 | — | — |
| 1915 | — | — |
| 1910 | — | — |
| 1905 | — | — |
| 1900 | — | — |
| 1895 | — | — |
| 1890 | — | — |
| 1885 | — | — |
| 1880 | — | — |
Frequently asked questions
What does the name Thaddaeus mean?
Borrowed from Latin Thaddaeus, from Ancient Greek Θαδδαῖος (Thaddaîos), from Aramaic תַדַּי (Ṯaday).
How popular is the name Thaddaeus in 2025?
Thaddaeus ranked #8,185 among boys' names in the United States in 2025, with 10 babies given the name, according to Social Security Administration data.
How many people are named Thaddaeus?
1,045 babies have been named Thaddaeus in the United States since 1924, based on Social Security card applications.
When was the name Thaddaeus most popular?
Thaddaeus peaked in 2005, when 29 newborns received the name.
Is Thaddaeus a boy or girl name?
Thaddaeus is overwhelmingly a boy's name — 100% of babies with the name.
Is the name Thaddaeus rising or falling?
Thaddaeus is declining — less popular now than a decade ago.