Seacliff Lunatic Asylum (often Seacliff Asylum, later Seacliff Mental Hospital) was a psychiatric hospital in Seacliff, New Zealand. When built in the late 19th century, it was the largest building in the country, noted for its scale and extravagant architecture. It became infamous for construction faults resulting in partial collapse, as well as a 1942 fire which destroyed a wooden outbuilding, claiming 37 lives (39 in other sources), because the victims were trapped in a locked ward.