The John Souther House is a historic house at 43 Fairmont Street in Newton, Massachusetts. The 2-1/2 story wood frame house was built c. 1883 and is a well-preserved high style Queen Anne Victorian house. Its basically rectangular shape is rendered distinctive by varied size and placement of gable dormers, projecting sections, a turret, and rounded wall sections. Decoratively cut shingles are used to add texture to wall surfaces, the porch is ornately decorated. The property includes a period carriage house. The house was listed on the National Register of Historic Places in 1986.