Meaning & origin
A reliable meaning for Thadius isn’t established in our sources yet. Rather than guess, we show what is recorded: how the name is used, how often, and the names it’s connected to.
The story
Published U.S. birth records include this spelling as early as 1922. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Thadius through the years
- Babies since 1880
- 511
- 511 boys · 0 girls
- Most popular year
- 1974
- 19 babies
- 2025
- 0
- Outside the ranked list
- 2021–25 vs 2016–20
- −72%
- Cooling
By the numbers
The most recent published U.S. birth count for boys is 7 in 2024. Later missing counts do not mean the name went unused. Its largest published annual count for boys was 19 in 1974. Published U.S. population figures for this spelling include 472 as a first name in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Thadius’s family of names
The ring: spellings.
Spellings & scripts 2
The same name written differently, including transliterations into other scripts.
Similar names
If you love Thadius, these share its style, era, origin or sound, from outside its own family.
Athanasios
“a-, un-, non-” · “dying”
>99% boys
Tavares
Tavares is a surname from Portuguese. It is used in English, French, and Portuguese.
>99% boys
Cornelius
“refers to a horn”
>99% boys
Demetrios
>99% boys
Vasilios
“one who is kingly; born to royalty”
>99% boys
Esequiel
“God strengthens” · “strengthened by God”
>99% boys
Jamieson
“the son of James”
>99% boys
Aric
“ever the ruler”
>99% boys