Church of Saint Apollinaris, Catholic church in Sadská, Czech Republic.

The Church of Saint Apollinaris is a religious building with Baroque-style features located in Sadská. Between 1737 and 1739, architect Kilian Ignaz Dientzenhofer renovated and updated it with typical ornamental elements of that period.

Duke Bořivoj II ordered the construction of the church and its chapter between 1118 and 1120. This established it as a key religious center in medieval Bohemia.

The church is a filial church of the Nymburk parish, so it has no resident priest of its own. Its dedication recalls Saint Apollinaris, and the chapter founded here in 1118 was described as the highest level of ecclesiastical schools. A statue of St. Wenceslas stands on the grassy ground beside the building.

The church stands on the hill in Sadská, with a view of the northeastern part of town along the path to the cemetery. A cross with the crucified Christ stands in front of the church, and a statue of St. Wenceslas is on the grassy plot beside it. The building is a filial church of the Nymburk parish.

The church survived the Hussite attack of 1420 that destroyed the Augustinian monastery and most houses in the village; the canons fled to Roudnice nad Labem and later to monasteries in Poland. The chapter had already been moved to St Apollinaris in Prague's New Town.