The Pest House in Stillwater Township, Minnesota, United States, is a former quarantine facility used by the city of Stillwater circa 1872 to 1910. It is a rare surviving example of a pest house, a common public health strategy of the late 19th and early 20th centuries, where people with contagious diseases were isolated. It was listed on the National Register of Historic Places in 1980 for having local significance in the theme of health/medicine. The original three-room Pest House has been converted into a private residence, with the addition of a porch on the southeast and a rear wing to the northwest.