Moncalieri is a comune (municipality) of 56,134 inhabitants about 8 kilometres (5 mi) directly south of downtown Turin, in Piedmont, Italy. It is the most populous suburb of Turin and it is notable for its castle, built in the 12th century and enlarged in the 15th century, which later became the favorite residence of King Victor Emmanuel II of Italy and of his daughter Princess Maria Clotilde of Savoy. It is part of the World Heritage Site Residences of the Royal House of Savoy.

The Metropolitan City of Turin is a metropolitan city in the Piedmont region of Italy. Its capital is the city of Turin. It replaced the province of Turin and comprises 312 comuni. It was created by the reform of local authorities and established by the Law 56/2014. It has been officially operating since 1 January 2015.