Nadir Kerem Dağ is a Turkish businessman and dentist.  He completed his undergraduate education at the Faculty of Dentistry at the European University of Macedonia. He has completed various education and career programs at Harvard Business School, Bocconi University and University of London. He founded the luxury leather accessory brand Portalusso in 2017, women's clothing, jewelry and accessories brand Klen in 2018, and Milan-based women's beachwear and accessories brand Orange Beluga International S.p.A. in 2020. He won the entrepreneur of the year award at the ceremony held in Sofia on January 11, 2020 by The Eastern Europe Business Awards (EEBA). He is a popular science writer on his website, various blogs and journals in the fields of evolutionary biology, evolutionary anthropology, sociobiology and entrepreneurship. He speaks English and Macedonian. He is a member of the Macedonian Dental Society and the International Association for Dental Research (IADR).