6,6-Difluoronorethisterone acetate, also known as 6,6-difluoro-17ñ-ethynyl-19-nortestosterone 17ò-acetate or as 6,6-difluoro-17ñ-ethynylestr-4-en-17ò-ol-3-one 17ò-acetate, is a steroidal progestin of the 19-nortestosterone group which was never marketed. In comparison to other steroids, is the C17ò acetate ester of 6,6-difluoronorethisterone and the 6,6-difluoro analog of norethisterone acetate.