Nebehay (Nebehaj, Nyebehaj, Nebehai) is a surname. Notable people with the surname include:
Christian M. Nebehay (1909–2003), Austrian art dealer, collector and author Gustav Nebehay (1881–1935), Austrian art dealer and patron of the arts See also (born Lajos Nebehaj) (1921–2014), Hungarian literary historian and aesthete