The Cathedral of Burgo de Osma is a Roman Catholic church located in El Burgo de Osma, central Spain. It is in the Gothic architectural style, and was constructed on an area previously occupied by a Romanesque church. It is one of the best preserved medieval buildings in the country and considered one of the best examples of thirteenth-century gothic architecture in Spain. The building of the church started in 1232, and was completed in 1784. The cloister is from 1512. The tower is from 1739.
The cathedral is dedicated to the Assumption of Mary.
It is the seat of the Bishop of Osma