Preston House, also known as Herondon and the John Montgomery Preston House, is a historic home located near Marion, Smyth County, Virginia. It was built in 1842, and is a two-story, five bay, brick Federal style dwelling. It features two closely matched doorways with a transom and sidelights, framed and divided by slender Tuscan order columns with an entablature and Greek Revival block composition above. The house was built "as a tavern or stagecoach inn along the Wilderness Road." This inn served travellers for some 22 years until 1864.