Today arthroscopic ankle surgery is a common surgical procedure and its number is constantly increasing. The aim of this study was to determine the proportion of ankle arthroscopies in children and adolescents in the total number of arthroscopic interventions on the ankle and to determine whether there was a difference in the indications for the procedure between the paediatric and the adult population. A hand search of operating room logs from the Department of Orthopaedic Surgery of the University Hospital Centre “Zagreb” was performed for a 5-year period. During this period 533 patients underwent ankle arthroscopy, among which 90 were younger than 18 years at the time of the surgery. Patient's medical history data was reviewed and recorded. Two leading indications for ankle arthroscopy in the paediatric population were the anterolateral ankle impingement syndrome and the osteochondral lesion of the talus. This differed from the the adult population, where the anterior impingement syndrome was the most frequent diagnosis. The perioperative period was uneventful in all 90 ankle arthroscopies in the paediatric population, while 2 complications were observed during the early postoperative period. Based on the results of our research we can conclude that ankle arthroscopy is a safe and effective surgical method to treat miscellaneous ankle disorders in the paediatric population. It should be emphasized that a difference exists between the leading indications for ankle arthroscopy in the paediatric and the adult population.