Abstract: Background and Objective: The demanded physical fitness for participation in water-ski and wakeboarding can exceed the athlete's adaptations and can cause injuries. Although the participation in these sports is massive both at the competitive level and recreation as well, no studies were conducted to record injuries. The present study aimed to record the Epidemiology frequency of injuries in competitive water-skiing and wakeboard athletes in Greece. Materials and Methods: Data were recorded retrospectively with an online questionnaire regarding the anatomical injury area, the type of injury, the anatomical area of sprains and the stress syndrome area was distributed to all-tournament license holders through the Hellenic Water-Ski and Wakeboard Federation. Athletes’ data and essential injury information were extracted from the questionnaire and analyzed with SPSS, version 25. Results: There were 140 participants, 104 male (74.3%) and 36 female (25.7%), with 92 (65.7%) to be athletes of water ski and 48 (34.2%) to be athletes of the wakeboard. Several 291 injury cases were reported. The highest percentages of anatomical injury areas and the anatomical areas of sprains reported to be the knee (16.5%), the ankle (11.7) and the shoulder girdle (11.7), sprains, fractures, strains, are the most common type of injuries. No significant differences were recorded between the sexes in the total number of injuries. Conclusion: Pattern of injuries in competitive water-skiing and wakeboard athletes in Greece are similar to current literature. Future studies should focus on factors that contribute to and prevent these injuries.