Altdorf is an unincorporated community in Wood County, in the U.S. state of Wisconsin.

[1] A post office was established at Altdorf in 1885, and remained in operation until 1905.

[2] The community was named after Altdorf, in Switzerland, the native home of a share of the first settlers.

[1] The community once had a schoolhouse, Altdorf School, now defunct.

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