Billiot
A surname of likely French origin, probably a regional diminutive or variant of a personal name.
The #9,881 most common surname in the United States (2010 Census) — about 1 in every 94,360 Americans shares it.
Etymology
Billiot is most likely a French surname formed from a personal name, with the ending -iot often used in French as a diminutive or affectionate form. It may ultimately go back to a pet form of a name such as Bill or William, though the exact starting point is not certain from surname evidence alone. In some cases, surnames like this can also reflect local pronunciation or spelling changes over time.
History
The name is associated especially with French-speaking families, including those from areas where French surnames were later carried to North America. In the United States it is especially likely to be found among families of French or Acadian/Louisiana heritage. The spelling appears to have remained relatively stable in modern records, though its deeper medieval origin is uncertain.
Origin
Regions
Variant spellings
Fun fact
The -iot ending is a classic French diminutive pattern, which is one reason surnames like Billiot often preserve a sense of older nickname forms.