San Nicola, Church building in Capalbio, Italy.

San Nicola is a church in Capalbio standing on the small square facing the Rocca Aldobrandesca. Its plastered facade rises in three orders, with a pointed Gothic arch over the entrance portal, a rose window above it and a cross on a small base at the top. The bell tower rises at the rear right, and the interior has a single nave with cross vaults and semicircular side chapels separated by pillars with carved capitals.

San Nicola was built in the Middle Ages, almost certainly in the 12th century, when it also served as a pieve. In the 14th century work introduced Gothic elements into the original Romanesque layout. The following century brought decorative additions in the Renaissance style, and later restorations plastered the outer walls without changing the building's stylistic appearance.

The semicircular side chapels are separated by pillars topped with carved capitals, and most of them carry frescoes of the Renaissance period in the Umbrian-Sienese school. The nickname "little Athens" for Capalbio's historic core is linked to the Renaissance decorative work added to the church interior in the 15th century.

The church stands on the small square facing the Rocca Aldobrandesca, in the historic centre of Capalbio. The entrance is the pointed Gothic arch on the three-order facade, with a rose window above it; the bell tower rises at the rear right side.

The exterior walls and the bell tower, which rises at the rear right, are covered in plaster, so the medieval stonework is not visible from outside. The facade is set on three orders, with a Gothic pointed arch over the entrance portal and a rose window above it.