The Pieve di San Giovanni in Ottavo, also known as the Pieve del Thò is a Romanesque-style, Roman Catholic, rural church located on Via Siepi #2 about 2 kilometers southwest of in the town of Brisighella, province of Ravenna, Italy.
The pieve's name derives from that in medieval times, it was measured to be located at the eighth mile of the Via Faventina (oggi Faentina); this was the ancien road that lead from Faenza across the Apennines toward Florence.
One column bears inscriptions from the era of the Roman emperor Valentinian II.
The square bell tower rising to the right of the presbytery dates to about the year 1000.
The crypts of the church underwent archeologic restoration during the 1990s leading to the discovery of a number of ancient burials.