Narcisse Mathias Juneau (November 14, 1821 – March 26, 1883) was an American farmer, interpreter, and pioneer of Wisconsin and Kansas.

He served two terms in the Wisconsin State Assembly, representing northeast Dodge County.

He received a basic education, and from an early age worked as an assistant and interpreter for his father in the fur trade.

He assisted the tribe's move to Oklahoma (then the Indian Territory) when they sold their land in Kansas.

Josette was the daughter of French Canadian fur trader Jacques Vieau, the first white person to permanently settle in Milwaukee.