Thelonious
Meaning
"lord, ruler"
Origin: Germanic/Latin
Cultural Roots
Quick Stats
- Popularity Rank
- #5,754
- Total SSA Count
- 16
- Syllables
- 4
- Formality
- Formal
- Nicknames
- Thelonious, Monk, Theo
Baby Name Comparison — 2026
"lord, ruler"
Origin: Germanic/Latin
"the meadows, fertile plains"
Origin: Spanish
Vegas is more popular, ranked #5635 vs #5754 for Thelonious.
Historical US popularity rank — lower number means more popular.
Historical trend data not available for this comparison.
Names that pair well as siblings.
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Vegas is more popular, ranked #5635 compared to Thelonious at #5754 in the United States.
Thelonious means "lord, ruler" (Germanic/Latin origin). Vegas means "the meadows, fertile plains" (Spanish origin).
Thelonious is primarily a boy name. Vegas is primarily a boy name.