boy's name
Thelonious
- Gender Boy
- Letters 10
- Popularity Rare
- Births on record 503
Thelonious is a boy's name. In 2025 it was given to 12 babies in the United States. It is a rare choice.
- Peaked in 2017, when 23 babies were given the name.
- It has been rising over the past decade.
- Today about 1 in 276,319 babies in the United States is given this name.
- First appears in US birth records in 1960.
Thelonious over time
Births per decade in the United States, 1960s to 2020s. The striped bar is the 2020s, still in progress — it covers 2020 to 2025, not a full ten years.
Show the numbers
| Decade | Births |
|---|---|
| 1960s | 37 |
| 1970s | 24 |
| 1980s | 14 |
| 1990s | 36 |
| 2000s | 90 |
| 2010s | 170 |
| 2020s (to 2025) | 96 |
How popular is Thelonious?
In 2025, Thelonious was given to 12 babies in the United States. It is a rare choice.
Where Thelonious is used
US figures omit any name given to fewer than five babies in a year, so the rarest names are absent from the source rather than absent from use. Data & sources.
Names that peaked alongside Thelonious
These names rose and fell in the same era, which is why they tend to sound like they belong together.
Parents who like Thelonious also like
Names whose popularity has risen and fallen in step with Thelonious over the last century — the same taste, a different name.
Sibling names for Thelonious
Names from the same era that won't rhyme or share an initial with Thelonious — the two things that make a sibling set grate.
Common questions about Thelonious
How popular is the name Thelonious?
In 2025, Thelonious was given to 12 babies in the United States. It is a rare choice.
Is Thelonious a girl's or a boy's name?
Thelonious is given almost entirely to boys in birth records.
When was Thelonious most popular?
Thelonious peaked in 2017, when 23 babies were given the name. It has been rising over the past decade.
Is Thelonious a good name?
That is not something records can settle, but they can tell you what you would be choosing. Thelonious currently ranks #7,000 in the United States. It has been rising over the past decade. Everything else — how it sounds with your surname, who it reminds you of — is yours.