The patron of Asciano is Saint Agatha, celebrated on 5 February.
One of the town's most important events is the Palio dei Ciuchi, a competition held on the second Sunday of September: inside the old municipal stadium «G. Marconi» seven donkeys race, each representing one of the town's districts. The town also holds the Abbey of Monte Oliveto Maggiore and the Pieve di San Martino in Grania.