Princess Margarita Maria Beatriz of Bourbon-Parma, Countess of Colorno (Dutch: Margarita Maria Beatrix Prinses de Bourbon de Parme; born 13 October 1972), is the eldest daughter of Princess Irene of the Netherlands and Carlos Hugo, Duke of Parma, and is member of the Royal and Ducal House of Bourbon-Parma, as well of the Dutch Royal Family.

Born in Nijmegen, she is the twin sister of Prince Jaime. She also has an elder brother, Prince Carlos, and a younger sister, Princess Carolina. Her godparents are Queen Beatrix of the Netherlands (maternal aunt) and Prince Sixtus Henry of Bourbon-Parma (paternal uncle). She is the eldest granddaughter of Queen Juliana and Prince Bernhard.

In 1981, her parents divorced. Together with her mother and her siblings she moved from Spain to The Netherlands, to live with her grandparents, Queen Juliana of the Netherlands and Prince Bernhard of Lippe-Biesterfeld at Baarn. Later she moved to Wijk bij Duurstede. Margarita studied Cultural Anthropology at the Vrije Universiteit of Amsterdam and is an interior decorator. She studied interior architecture in The Hague.