Peterson and Mustard's Hermitage Farm is a historic home located near Smyrna, Kent County, Delaware.

It built about 1863, and is a two-story, L-shaped frame dwelling in the Italianate "peach house" style.

It consists of a three-bay, flat-roofed main block with a rear service wing.

Also on the property are a contributing granary-loading shed group and stable; both of pegged braced-frame construction, and probably dating from the 19th century.

This article about a property in Delaware on the National Register of Historic Places is a stub.