The patron saint of Sennori is Saint Basil the Great, celebrated on 14 June in the Church of San Basilio Magno.
The town holds six religious feasts, each lasting several days: the most important is that of Saint John, known throughout Sardinia for its great cavalcade and costume parade, with different groups in traditional Sardinian dress taking turns each year. The town also holds the Church of Santa Lucia and the Oridda Giants' Tomb.