Petrovskoye-Alabino (Петровское-Алабино) is a ruined country house near the village of Alabino, in the Naro-Fominsky District of the Moscow Oblast. It is sited near the Desna River, about 50 kilometres (31 mi) southwest of Moscow, beside the route towards Kiev. The classical house was built in the late 18th century, probably designed by Matvey Kazakov, or perhaps his mentor Vasili Bazhenov, for the Demidov family. It has been described as "one of the most splendid of Moscow's country estates" and as one of the "most grandiose monuments" to the southwest of Moscow.