Louis Blanchette (11 July 1739 – August 1793) was a French Canadian explorer and likely fur trader in North America in the 18th century.
Blanchette, determined to settle there, asked if Guillet, who had become the chief of a Dakota band, had chosen a name for it.
For one, he appears to have conflated Blanchette's trade as a hunter (chasseur in French) with a surname.
Blanchette settled there in 1769 under the authority of the Spanish governor of Upper Louisiana, and served as its civil and military leader until his death in 1793.
Although the settlement was under Spanish jurisdiction, the settlers themselves remained primarily French nationals.