Existential concerns such as death, responsibility, meaninglessness, and isolation not only are the hallmark of existential psychotherapy but also are frequently encountered by CBT therapists-nevertheless, due to epistemological and ideological differences, existential and CBT approaches to psychotherapy had little overlap historically. During recent years, existential issues are increasingly discussed in empirical clinical psychology, e.g., the potential role of the fear of death for a variety of mental disorders by Iverach et al. (Clinical Psychology Review, 34(7), 580-593, 2014), and there is increasing experimental evidence for a causal rather than correlational role of death anxiety discussed by Menzies and Dar-Nimrod (Journal of Abnormal Psychology, 126(4), 367-377, 2017). Further, existential concerns are common themes in CBT discussed by Grober et al. (Psychotherapeut, 61(3), 229-236, 2016) and may play an important role in the training of CBT therapists discussed by Worrell et al. (Journal of Psychotherapy and Counselling Psychology Reflections, 3(1), 9-16, 2018) as well as in personal therapy and supervision.