The William Winter Stone House is a historic residence in Clermont County, Ohio, United States.

Born in Virginia, Mordecai Winters and his family moved to the Northwest Territory at the end of the eighteenth century, becoming established in Williamsburg by 1800.

From 1848 until 1880, the Mount Olive post office operated out of the kitchen, and a general store was run out of a back addition that was constructed circa 1850.

The three-bay facade is pierced by five windows, in addition to a door with four-piece transom light in the center of the first story.

[1] For much of its history, the house has been an informal landmark for locals, both because of its architecture and because of its significant commercial role in what was once a remote part of the county.