Mental health is a rapidly increasing topic in the field of sport psychology. As the relevance of athletes’ mental health has come to prominence through emerging research, there is a high demand for evidence-based practice in order to promote athletes' mental health and prevent mental disorders as well as maladaptive syndromes. However, there is currently no comprehensive overview available that highlights the empirical evidence for the constructs of mental health, illustrating the latest developments in research, or that highlights implications for future science and practice.