Meaning & origin
A reliable meaning for Thelonius 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 1972. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Thelonius through the years
- Babies since 1880
- 21
- 21 boys · 0 girls
- Most popular year
- 2006
- 6 babies
- 2025
- 0
- Outside the ranked list
- 2021–25 vs 2016–20
- —
- Too few births to compare
By the numbers
The most recent published U.S. birth count for boys is 5 in 2013. Later missing counts do not mean the name went unused. Its largest published annual count for boys was 6 in 2006.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Thelonius’s family of names
See also 1
Names our sources mention alongside this one. They are related in story or meaning, not forms of this name.
People named Thelonius
Listed by how widely each person is written about, which says nothing about the name itself.
Similar names
If you love Thelonius, these share its style, era, origin or sound, from outside its own family.