The Our Lady of the Rosary Church of Chelín (Iglesia Nuestra Señora del Rosario de Chelín) is a Catholic temple located in the municipality of Castro.
It Is believed to have been built in 1735, although the current church dates from 1888. Made following a neoclassical style, its interior columns painted with lines imitating marble stand out, and its roof is covered with larch shingles. It has an 18-meter tower. Behind the church is the cemetery, very characteristic of Chilote culture, with small wooden houses.
Similar to other churches of the so called Chilote School of Religious Architecture in Wood, the church of Chelín has been restored by the community, the last intervention of consolidation of the tower being registered approximately thirty years ago.
It was declared National Monument in November 2000, and World Heritage by UNESCO in the same year. Its patron saint is Our Lady of the Rosary, whose festivity is celebrated on August 30.