{{Infobox mountain | name = Mount Ragang | other_name = Mount Piapayungan | photo = | photo_caption = | elevation_m = 2815 | elevation_ref = | prominence_m = 1590 | prominence_ref = | map = Philippines | map_alt = | map_border = | map_caption = Location within the Philippines | map_relief = | map_size = | label = Mount Ragang | label_position = left
| listing =
| location = Mindanao | range = | coordinates = 7°41′40″N 124°30′27″E / 7.69444°N 124.50750°ECoordinates: 7°41′40″N 124°30′27″E / 7.69444°N 124.50750°E | range_coordinates = | coordinates_ref = | country = Philippines
| state =
| state_type = Regions | region = | region_type = Provinces | topo = | type = Stratovolcano | age = | last_eruption = July 1916 | first_ascent = | easiest_route =
Mount Ragang, also called Mount Piapayungan and Blue Mountain by the local people, is a stratovolcano on Mindanao island in the Philippines. It is the seventh highest mountain in the Philippines and the highest point in Lanao del Sur.