Mosher House in Wellington, Ohio, is a two-story Prairie-style residence built in 1902 for John A. Mosher. With its asymmetrical cruciform plan, open west porch, horizontal emphasis, board-and-batten siding, stuccoed upper walls, and broad hipped roof overhangs, it has the low, spreading profile associated with the style at the turn of the 20th century. The house became best known for debate over whether Frank Lloyd Wright designed it, but no evidence links him to the building that was constructed, and that attribution is generally rejected. Its importance rests instead on its role as a notable early example of Prairie-style influence in Wellington.