This work focuses on the potential opportunities that may arise from applying holographic techniques in general and clinical psychology. Holographic Augmented Reality (HAR), a method already used in medicine, allows for the visualization of three-dimensional images without the need for special glasses and can be employed in psychology for various purposes. The aim of this paper is to provide an overview of the literature on this innovative topic. This technique can be used in the fields of training, psychoeducation, prevention, and stress management. On a more clinical level, this technique may be applied in cognitive restructuring and emotional regulation, in fostering the development of social skills, in cognitive rehabilitation, and as a support in the treatment of various clinical conditions. This technology is still in a phase of limited application and, more importantly, still under development and research. However, the use of 3D holographic projections could, in the not-too-distant future, play a significant role in psychoeducational and training processes, as well as in psychological prevention and clinical practice.