The municipality of San Giovanni Teatino celebrates two distinct patrons: Saint Roch, patron of the hamlet of Sambuceto, celebrated on 16 August in the Church of San Rocco, and Saint Vincent Ferrer, patron of the hamlet of San Giovanni, celebrated in the first half of September.
The town holds the Church of San Giovanni Evangelista and the Church of the Immacolata Concezione «De Laurentiis», as well as the Church «Mater Populi Teatini».
