James W. Nye Mansion, at 108 N. Minnesota St. in Carson City, Nevada, United States, was built in 1860.

It was a home of U.S. senator William M. Stewart and of Nevada territory governor James W. Nye.

It is a 1+1⁄2-story stone house built on a large lot.

It became an unofficial Governor's Mansion after Governor Nye purchased the house in 1862.

This article about a property in Nevada on the National Register of Historic Places is a stub.