San Martino Sanctuary, Neoclassical church and national heritage in Cinisello Balsamo, Italy.

The San Martino Sanctuary stands at the junction of Via San Saturnino and Via San Martino in Balsamo, facing Viale delle Rimembranze. Its present form is a Latin-cross plan with three naves, a central nave and two side aisles, measuring 24 metres wide by 30 metres long, the result of early 20th-century enlargement under Don Antonio Colombo. The bell tower, over sixty metres high, was completed in 1856 under parish priest Don Giovanni Prato.

A church dedicated to Martin of Tours is documented by the late 13th century, when the Ecclesia Sancti Martini was listed among the churches of the Ambrosian archdiocese in Goffredo da Bussero's Liber Notitiae Sanctorum Mediolani, within the parish of Desio. Pastoral visits from 1567 record a rectangular single-nave building with a bell tower. The present Latin-cross layout with three naves and a square apse results from the early 20th-century enlargement directed by Don Antonio Colombo, giving the church its dimensions of 24 by 30 metres.

San Martino is the patron saint of Balsamo, and the church has served as the community's reference church for centuries; the village grew around it until the early 20th century. A 1758 map of the Desio parish still shows Cinisello and Balsamo clustered around their two churches.

The church stands at the intersection of Via San Saturnino and Via San Martino, making it easy to locate. Regular services follow the Ambrosian Rite calendar and are open to visitors.

The bell tower, over sixty metres high, was completed and inaugurated in 1856 under parish priest Don Giovanni Prato. Until 1877 the historic cemetery of Balsamo ran south from the church, marked by a 16th-century stationary cross that has since been lost; land donated by Marquise Cristiana Morosina, widow of Marquis Casati Stampa di Soncino, allowed it to be moved southeast outside the built-up area.