A 1970s favorite, climbing again.
Popularity of Thadius since 1922
Babies named Thadius per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1920s | 15 |
| 1930s | 0 |
| 1940s | 0 |
| 1950s | 6 |
| 1960s | 13 |
| 1970s | 118 |
| 1980s | 89 |
| 1990s | 116 |
| 2000s | 81 |
| 2010s | 61 |
| 2020s | 12 |
Meaning & origin
Thadius is a spelling variant of the biblical name Thaddeus, offering a slightly streamlined form. The name first appeared in U.S. records in 1922, and while it has never entered common use, it saw a modest peak in 1974. After a period of decline, Thadius has experienced a revival since 2022, trending upward in the 2020s. The name's rarity and biblical roots give it a distinctive, traditional feel that appeals to parents seeking an uncommon yet historic name. Its revival in the current decade aligns with a broader resurgence of names from the 1970s, a trend that may continue as modern parents rediscover vintage choices.
Thadius is a spelling variant of Thaddeus, a name of Aramaic origin found in the New Testament. Thaddeus was one of the twelve apostles. The Latinized form Thaddaeus gave rise to variants like Thadius, which emerged in English-speaking countries, particularly in the 19th and 20th centuries.
Nicknames & variants
Nicknames: Thad, Tad
Sibling names for Thadius
Names that share Thadius's style, for a brother or sister.
