Mount Pinukis is an inactive volcano in Brgy. Lison Valley, Pagadian, Philippines. It is the highest peak of Zamboanga del Sur and the entire Zamboanga Peninsula.
It covers more than , has up to 2015 retained a relatively intact forest cover and is therefore included in the Important Bird and Biodiversity Areas (IBAs).
Pinukis, the sacred mountain of the Subanen tribe, and a main source for the water system of the three provinces of the Zamboanga peninsula, is under threat from multinational mining companies who wish to engage in open-cast mining.