Thadius
Boy nameThadius has been given to 511 babies in the U.S. since 1922. It peaked in 1974.
Popularity over time births per year, 1880–2025
Total babies
511
Peak year
1974 (19 babies)
Rank in 2025
Below top 1000
First recorded
1922
10-year trend
▼ -100%
Gender split
All boys
Names with a similar vibe
Same primary gender, peaked around the same years, and roughly as common as Thadius.
Sibling name ideas for Thadius
Same era and popularity as Thadius, avoiding matching initials or rhymes.
FAQ
How popular is the name Thadius?
Thadius has been given to 511 babies in the U.S. since 1922. It ranked below the top 1000 in 2025.
When did the name Thadius peak?
Thadius peaked in 1974, when 19 babies were given the name.
Is Thadius a girl or boy name?
Thadius is primarily a boy name (100% of babies named Thadius are boys).
Get new name insights first
Occasional updates when we add new data & tools. No spam, unsubscribe anytime by replying to any email or writing to hello@zalize.com.
By subscribing you agree to our privacy policy. We store only your email address and the date you signed up.