Rondeau
A French surname originally tied to the idea of being round, plump, or circular.
The #8,475 most common surname in the United States (2010 Census) — about 1 in every 79,288 Americans shares it.
Etymology
Rondeau is a French surname built on rond, meaning “round,” with the diminutive ending -eau. In older French naming, this kind of form often began as a nickname for someone round-faced, stocky, or otherwise “plump,” though some writers also linked it more loosely to related forms like Rondel or Rondelle. The deeper root is Latin rotundus, “round.”
History
The name is well established in France and later spread to French-speaking communities elsewhere. Historical surname writers often grouped Rondeau with a family of similar French forms—Rondel, Rondelet, Rondin, and others—showing how productive this nickname pattern was. In North America, it appears especially among families of French and French-Canadian background.
Origin
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Variant spellings
Fun fact
19th-century surname scholars frequently treated Rondeau as part of a whole cluster of French names built from rond, “round.”
From the historical record
“RONDEL "1 the French Rondel (later form ROHOEV-l.] Rondeau) = Round, Plump [Fr. rofid, Lat. rotund-us, round + the Fr. dim. suff. -el, Lat. -ell-us]”
— Surnames of the United Kingdom: a concise etymological dictionary (2 vols in 1)