Althupite (IMA symbol: Ahp) is a rare aluminium thorium uranyl phosphate mineral with complex formula written as AlTh(UO<sub>2</sub>)<sub>7</sub>(PO<sub>4</sub>)<sub>4</sub>O<sub>2</sub>(OH)<sub>5</sub>÷15H<sub>2</sub>O, from a granitic pegmatite. It is named after its composition (ALuminium, THorium, Uranium, and Phosphorus).