Poniatowski is an unincorporated community, in the town of Rietbrock, Marathon County, Wisconsin, United States.

[1] The area is geographically notable for being less than one mile away from the 45°N, 90°W point.

It is most likely named after a Polish royal family of the same name.

Poniatowski is also being considered one of few undiscovered Polish communities[clarification needed] due to the group of Polish settlers established their village after Rietbrock in 1879, naming after Polish leader and general Józef Poniatowski.

This article about a location in Marathon County, Wisconsin is a stub.