The Church of Santo Adriano de Tuñón (Spanish: Iglesia de Santo Adriano de Tuñón) is a Roman Catholic Pre-Romanesque church in the village of Tuñón, Asturias, Spain dedicated to Saint Adrian. The church is located on the bank of the , next to an old Roman road. Founded on January 24, 891, by Alfonso III of Asturias and his wife as a monastery church, it went through large transformations at the beginnings of the 12th century. It was declared a Spanish national monument in June 1931.