The Malagonlong Bridge (also Puente de Malagonlong) is a five-span 445 ft (136 m) long stone arch bridge built during the Spanish colonial period in Tayabas, Quezon, Philippines. The bridge is known as one of the oldest bridges as well as the longest bridge made during the Spanish era. It was declared a National Cultural Treasure under the Historic Bridges of Tayabas on August 12, 2011.