Thaddaeus
Thaddaeus was the 8185th most popular name for boys in 2025, given to 10 babies. Its best year was 1978, when it ranked 2271st; the most babies were born in 2005 (29). Over the last ten years it has moved down 2,465 places. More babies were named Thaddaeus in the 2000s than in any other decade.
Meaning Not yet researched how we research meanings
- Rank in 2025
- #8,185 boys, down 3,503 places since 2020
- Babies in 2025
- 10boys
- Girls and boys
- Almost always a boy’s name2021–2025
- Peak year
- 200529 babies
- Total since 1880
- 1,045babies recorded
Thaddaeus popularity since 1880
| Year | Rank (boys) | Babies (boys) |
|---|---|---|
| 2025 | #8,185 | 10 |
| 2020 | #4,682 | 21 |
| 2010 | #4,827 | 20 |
| 2000 | #3,749 | 22 |
| 1990 | #3,587 | 17 |
| 1980 | #2,606 | 19 |
| 1970 | #3,493 | 9 |
| 1960 | — | — |
| 1950 | — | — |
| 1940 | — | — |
| 1930 | — | — |
| 1920 | — | — |
| 1910 | — | — |
| 1900 | — | — |
| 1890 | — | — |
| 1880 | — | — |
How popular is Thaddaeus, counting every spelling?
Thaddaeus has no other common spelling that sounds the same.
How many kids will share the name Thaddaeus?
10 of the 3,606,400 babies born in the US in 2025 were named Thaddaeus (0.00 per 1,000 births). For a boy named Thaddaeus born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 831 (of 430 pupils) would have a child named Thaddaeus.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Thaddaeus?
About 1,000 people born in the US named Thaddaeus are alive today, with a median age of 26; half are between 14 and 39. That makes Thaddaeus mostly worn by children and young adults.
Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.
Names with a similar history
These names rose and fell in step with Thaddaeus: their share of US boys followed the most similar curve since 1880. If you like Thaddaeus, they share its era and feel.
Questions about the name Thaddaeus
How popular is the name Thaddaeus?
Thaddaeus was the 8185th most popular name for boys in 2025, given to 10 babies. Its best year was 1978, when it ranked 2271st; the most babies were born in 2005 (29). Over the last ten years it has moved down 2,465 places. More babies were named Thaddaeus in the 2000s than in any other decade.
Is Thaddaeus a boy or girl name?
In 2021–2025, almost always a boy’s name given the name Thaddaeus in the US.