Located within the borders of district Mugla province, the building is the only Ottoman period church in Datca Peninsula, which has been a home to rich cultural assets since antiquity. With the Small Kaynarca Treaty of 1774, started a process in which the churches were re-built by the minorities in the Ottoman Empire borders. Within this scope, the construction activities in-tensively were made in the regions where minorities lived. Many old buildings were repaired or new churches were built under the auspices of the Ottoman Sultans. The only Ottoman church in the Datca Peninsula which was built in this scope, Datca Hızırsah Church is created of the subject of our study. The structure, which is thought to be built on the remains of a medieval church, has a rectangular plan with a single nave in the east-west direction. In the eastern fa-cade of the church, there is am apse with semi-circular form on the inner side and with a sev-en facades on the outside. Although it does not have an inscription, the date of 1890, which was uncovered in the wall of naos during the restoration works carried out in recent years, may be thought as the date of construction. The decoration program of the church consists of the stone ornamentation at the doorjamb of the northern entrance, the capitals of wall-pillars in the naos and the stucco decorations placed in moldings on the naos walls, as well as the painted decoration on the barrel vaults of the naos. The building, which has gained its present view with the restoration works carried out between 2015-2017, serves as Hızırsah Culture House today. In this study, the architectural and decorative features of Datca Hızırsah Church will be described in detail and its place in the Anatolia church architecture in the Ottoman pe-riod will be evaluated with similar examples.