Alois Philipp Maria, Hereditary Prince of Liechtenstein (German: Erbprinz Alois Philipp Maria von und zu Liechtenstein) (born 11 June 1968 in Zürich) is the eldest son of Prince Hans Adam II of Liechtenstein and his wife Princess Marie of Liechtenstein. He has been Regent of Liechtenstein (Stellvertreter des Fürsten) since 15 August 2004.