San Niccolò al Carmine, also called Santa Maria del Carmine is a Renaissance style, Roman Catholic church and monastery located in Pian dei Mantellini #30, near the corner of Via della Diana in the Terzo de Citta of Siena, region of Tuscany, Italy. The church now serves as the Oratory for the Contrada of Pantera. Across the street from the belltower is the Palazzo Celsi Pollini. North along Pian dei Mantellini, toward the Arco delle Due Porte, and on the same side of the street are a number of palaces built around what was once the : in order they are the Neoclassical Palazzo Incontri, the and the Palazzo Segardi.