Holding steady.
Popularity of Thaddius since 1916
Babies named Thaddius per year in U.S. Social Security records. Raw births topped out in 1989, but relative to how few babies were recorded back then, Thaddius's real moment was 1973.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1910s | 12 |
| 1920s | 5 |
| 1930s | 5 |
| 1940s | 12 |
| 1950s | 23 |
| 1960s | 35 |
| 1970s | 112 |
| 1980s | 116 |
| 1990s | 105 |
| 2000s | 92 |
| 2010s | 58 |
| 2020s | 18 |
Meaning & origin
Thaddius remains a very rare name in the United States. It first appeared in Social Security records in 1916, but it never entered the top 1,000. The name's peak popularity came in 1973, when it was recorded for just 7 births. Since then, its trajectory has remained stable at extremely low usage, typically fewer than 5 births per year in most decades. The name is a variant of Thaddeus, which has more established usage, particularly in religious contexts. Thaddius has not been concentrated in any particular state, reflecting its scattered, infrequent adoption nationwide. As a baby name, it offers a distinctive spelling of a traditional biblical name, appealing to parents seeking something uncommon yet familiar.
Thaddius is a variant spelling of Thaddeus, a name of debated origin. Some sources link it to the Aramaic word 'libba', meaning 'heart', suggesting a meaning of 'courageous heart' or 'gift of God'. Thaddeus appears in the New Testament as one of the twelve apostles, also known as Jude. The variant Thaddius emerged in the United States, where it has seen sporadic use since the early 20th century.
Nicknames & variants
Nicknames: Thad, Tad
Sibling names for Thaddius
Names that share Thaddius's style, for a brother or sister.
