Mount Penanggungan is a small stratovolcano, immediately north of Arjuno-Welirang volcanic complex in East Java province, Java island, Indonesia.
Mount Penanggungan is about 40 kilometers (24.8 mi) south of Surabaya, and can be seen from there on a clear day. Several Hindu-Buddhist sanctuaries, sacred places and monuments are on the mountain dating from AD 977–1511. Lava flows and pyroclastic deposits are around the volcano.