Thelonious
- Gender
- Boy
- Say it
- the-LOH-nee-us
- Origin
- Germanic
- US rank, 2025
- #6,799 for boys
Thelonious is a boys' name of Germanic origin. In 2025 it ranked 6,799th for boys in the US (12 babies).
What does Thelonious mean?
Germanic: Latinized form of a Germanic name
Jazz pianist and composer Thelonious Monk (1917-1982) wrote standards including 'Round Midnight.
Is Thelonious a girl's or a boy's name?
Thelonious is a boys' name. In 2025, it was given to 12 boys in the US. Too few girls were given it to be listed.
How popular is Thelonious in the UK?
No boys in the UK were given it in 2025, or too few to be listed. Its busiest year was 2014, with 5 boys.
Thelonious in the UK, year by year
| Year | Boys | Rank |
|---|---|---|
| 2020 | 3 | #4,803 |
| 2019 | 3 | #4,913 |
| 2018 | 3 | #4,959 |
| 2017 | 0 | – |
| 2016 | 4 | #4,214 |
| 2015 | 1 | #6,220 |
| 2014 | 5 | #3,529 |
| 2013 | 0 | – |
| 2012 | 0 | – |
| 2011 | 0 | – |
| 2010 | 3 | #4,865 |
| 2009 | 0 | – |
| 2008 | 0 | – |
| 2007 | 0 | – |
| 2006 | 3 | #4,204 |
| 2005 | 0 | – |
| 2004 | 4 | #3,147 |
| 2003 | 0 | – |
| 2002 | 3 | #3,325 |
How popular is Thelonious in the US?
- Rank in 2025
- 6,799th among boys
- Babies in 2025
- 12 about 1 in 140,000 boys
- Five-year trend
- Steady down 20% in five years
- Same name in a class
- under 1% chance among 15 boys
In 2025, 12 boys in the US were named Thelonious, making it the 6,799th most popular name for boys. Five years earlier, in 2020, it was 5,447th. Its busiest year was 2017, with 23 boys. It first appears in the records in 1960.
Half of all the boys named Thelonious in the US since 1880 were born between 2000 and 2018, the years shaded on the chart below.
Thelonious in the US, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 12 | #6,799 |
| 2024 | 16 | #5,655 |
| 2023 | 12 | #6,892 |
| 2022 | 17 | #5,441 |
| 2021 | 23 | #4,358 |
| 2020 | 16 | #5,447 |
| 2019 | 14 | #6,099 |
| 2018 | 20 | #4,735 |
| 2017 | 23 | #4,327 |
| 2016 | 20 | #4,775 |
| 2015 | 21 | #4,543 |
| 2014 | 16 | #5,481 |
| 2013 | 17 | #5,167 |
| 2012 | 15 | #5,714 |
| 2011 | 9 | #8,072 |
| 2010 | 15 | #5,737 |
| 2009 | 17 | #5,332 |
| 2008 | 7 | #9,864 |
| 2007 | 7 | #9,782 |
| 2006 | 8 | #8,726 |
| 2005 | 6 | #10,144 |
| 2004 | 7 | #8,921 |
| 2003 | 11 | #6,251 |
| 2002 | 8 | #7,636 |
| 2001 | 11 | #6,006 |
| 2000 | 8 | #7,409 |
| 1999 | 10 | #6,036 |
| 1998 | 10 | #5,834 |
| 1997 | 0 | – |
| 1996 | 6 | #7,964 |
| 1995 | 0 | – |
| 1994 | 0 | – |
| 1993 | 0 | – |
| 1992 | 0 | – |
| 1991 | 5 | #8,228 |
| 1990 | 5 | #8,108 |
| 1989 | 8 | #5,608 |
| 1988 | 0 | – |
| 1987 | 6 | #6,083 |
| 1986 | 0 | – |
| 1985 | 0 | – |
| 1984 | 0 | – |
| 1983 | 0 | – |
| 1982 | 0 | – |
| 1981 | 0 | – |
| 1980 | 0 | – |
| 1979 | 0 | – |
| 1978 | 0 | – |
| 1977 | 0 | – |
| 1976 | 0 | – |
| 1975 | 5 | #5,462 |
| 1974 | 0 | – |
| 1973 | 6 | #4,503 |
| 1972 | 0 | – |
| 1971 | 8 | #3,656 |
| 1970 | 5 | #4,722 |
| 1969 | 0 | – |
| 1968 | 9 | #2,906 |
| 1967 | 0 | – |
| 1966 | 0 | – |
| 1965 | 10 | #2,615 |
| 1964 | 7 | #3,281 |
| 1963 | 6 | #3,645 |
| 1962 | 0 | – |
| 1961 | 0 | – |
| 1960 | 5 | #4,036 |
Names like Thelonious
Names given in the same years and the same naming tradition, with a similar sound.
Tobias, Albie, Theo, Leonardo, Sebastian, Myles, Elias, Hudson, Enzo, Elijah, Milo, Hugo
More Germanic names
Amelia, Liam, Henry, Charlotte, William, Archie, Charlie, Emma, Freddie, Ella, Harry, Millie, Matilda, Louie, Miles, Alice
Sources
Figures from Baby names in England and Wales (Office for National Statistics), Babies' first names (National Records of Scotland), Baby names (Northern Ireland Statistics and Research Agency) and Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.
To cite this page: Nameling, “Thelonious: name meaning, origin and popularity”, https://www.nameling.co.uk/names/thelonious, updated 20 October 2026.