Princess Nina of Greece and Denmark (née Nina Nastassja Flohr; born 22 January 1987) is a Swiss entrepreneur and philanthropist. She is a member of the former Greek royal family and the Danish royal family as the wife of Prince Philippos of Greece and Denmark, son of Constantine II of Greece. Princess Nina is the founder and creative director of the Kisawa Sanctuary and the founder of the Bazaruto Center for Scientific Studies, both located in Benguerra Island, Mozambique. She previously worked as the creative director of VistaJet, a luxury private airline company.