Maria-Pia Ludovika Ulrika Elisabeth Paschaline Katharina Ignazia Lucia Johanna Josefa Kothbauer, Princess of Liechtenstein (born 6 August 1960), is the Ambassador Extraordinary and Plenipotentiary of Liechtenstein to Austria and the Czech Republic, formerly also to Belgium and the European Union.
She also serves as Liechtenstein's Permanent Representative to the Organization for Security and Co-operation in Europe and to the United Nations.