Mayview State Hospital was a psychiatric hospital, originally known as Marshalsea Poor Farm, located in South Fayette Township near Bridgeville, Pennsylvania. It spanned 335 acres (136 ha) and had 39 buildings, 12 of which were used for patient care and hospital administration. It had a staff count of approximately 502 as of August 2007, and an operating budget of $63 million per year. It was demolished in 2016 to build residential housing.