Countess Tessa June von Walderdorff (German: Tessa June Gräfin von Walderdorff; born 20 February 1994), also known by her married name Tessa Hilton, is an American socialite, model, and real estate broker. She previously worked as an actress in short films, a free-lance disc jockey, and was a writer for the German fashion and lifestyle magazine I Love You.