Isabel del Puerto (born Elisabeth von Hortenau;[1] August 7, 1921 in Vienna, Austria – March 13, 2014) was an Austrian-born noblewoman Mexican-American model, actress, dancer, writer, photojournalist, realtor and entrepreneur, and is the daughter of Charlotte Helene Beer[2] and Alfred Joseph von Hortenau,[3] a cavalry officer in the Austro-Hungarian Army and illegitimate son of the Archduke Otto Francis of Austria.

At four she made her stage debut under the guidance of Isadora Duncan and her grandmother Maria Schleinzer[4] who was a vedette at the Vienna Court Opera.

After a short career on Broadway, she went to Mexico, where she modeled for a department store and appeared in 17 films, becoming a star of the Golden Age of Mexican cinema of the 1940s and 1950s.

She owned and cooked for five gourmet restaurants, among them El Cuchitril, a famous bistro in the Zona Rosa Mexico City.

One of her oeuvres is a semi-fictitious biography called My Way, two are detective stories: "The Key" and "The Portrait" and one is a book for children, Sonia, which she hoped to have illustrated and published.