Valentia is a historic home located at Hagerstown, Washington County, Maryland, United States.

It is a large 2+1⁄2-story L-shaped stone farmhouse, facing south overlooking Antietam Creek.

The house features a flat-roofed, one-story porch covers the south door and flanking windows and is supported by four Doric columns resting on stone piers.

[2] It was listed on the National Register of Historic Places in 1974.

This article about a Registered Historic Place in Washington County, Maryland is a stub.