Fitzwilliam
Meaning
"son of William"
Origin: Anglo-Norman
Cultural Roots
Quick Stats
- Popularity Rank
- #24,472
- Total SSA Count
- 6
- Syllables
- 4
- Formality
- Formal
- Nicknames
- Fitz, Will, Wills
Baby Name Comparison — 2026
"son of William"
Origin: Anglo-Norman
"dove, peaceful"
Origin: Hebrew
Jonam is more popular, ranked #24289 vs #24472 for Fitzwilliam.
Historical US popularity rank — lower number means more popular.
Historical trend data not available for this comparison.
Names that pair well as siblings.
Answer 3 quick questions and we'll help you decide.
1. Which style feels more like your family?
Jonam is more popular, ranked #24289 compared to Fitzwilliam at #24472 in the United States.
Fitzwilliam means "son of William" (Anglo-Norman origin). Jonam means "dove, peaceful" (Hebrew origin).
Fitzwilliam is primarily a boy name. Jonam is primarily a boy name.