Montechiaro d'Asti (Piedmontese: Monciàir) is a town and comune (municipality) in the Province of Asti in the Italian region Piedmont, located about 35 kilometres (22 mi) east of Turin and about 13 kilometres (8 mi) northwest of Asti.
Montechiaro d'Asti borders the following municipalities: Camerano Casasco, Chiusano d'Asti, Cortanze, Cossombrato, Cunico, Montiglio Monferrato, Soglio, and Villa San Secondo.
Giovanni Pastrone, also known by his artistic name Piero Fosco (13 September 1883 – 27 June 1959), was an Italian film pioneer, director, screenwriter, actor and technician.
Pastrone was born in Montechiaro d'Asti. He worked during the era of the silent film and influenced many important directors in the international cinema with Cabiria, such as David Wark Griffith in The Birth of a Nation (1915) and Intolerance (1916).