The text investigates a specific aspect of dreams and dreaming, which is best described with reference to the Freudian concept of ‘the Uncanny’. By combining psychoanalytical knowledge with concepts developed within the frame of empirical dream research, the dream generation model by Moser and v. Zeppelin is applied in order to discuss aspects of Dream-work. Dream-processes are described as oscillating between two areas - a familiar and an unfamiliar world. The approach to unfamiliar material in a dream implies the potential of uncanniness. Thus, every dream contains potentially uncanny material. Clinical implications for dream interpretations are discussed.