Mendota Mental Health Institute (MMHI) is a public psychiatric hospital in Madison, Wisconsin, United States, operated by the Wisconsin Department of Health Services. The hospital is accredited by the Joint Commission. Portions of the facility are included in the Wisconsin Memorial Hospital Historic District, District #88002183. The Mendota State Hospital Mound Group (NRHP #74000076) and Farwell's Point Mound Group (NRHP #74000069) are also located at the facility.