BackgroundCystic fibrosis (CF) is a rare disease in Algeria, and its prognosis is poor in developing countries. The clinical and demographic knowledge of Algerian pediatric patients diagnosed with CF is incomplete due to the nonexistence of a national medical registry. Hence, the present study is the first Algerian multicentre study on CF.MethodsThis retrospective study was conducted in western Algeria. Over 1 year, the study included all pediatric patients with a confirmed diagnosis of CF in the pediatric hospital of Oran. Patient characteristics, clinical manifestations, and the prescribed treatment were reported.ResultsThirty‐four children (16 boys and 18 girls) participated in this study. Only 15 were diagnosed before the age of 6 months. The sweat chloride test was positive in all patients. Respiratory manifestations were found in all patients, chronic diarrhoea in 29 of them, and growth retardation in 10. Moreover, 25 (73.5%) had low to low intermediate socioeconomic levels. After diagnosis, respiratory complications marked the evolution of the 34 patients, with bronchial congestion observed in 33 of them, while 10 (29.4%) patients presented severe bronchopneumonia and 4 (11.8%) were affected by asthma. Consequently, three (8.8%) died at an average age of 9 years mainly because of respiratory failure.ConclusionThe prognosis of CF is poor in Algeria compared to other developed countries due to the longer diagnostic delay and limited therapeutic alternatives. This representative subset of Algerian pediatric patients with CF will serve as a reference for future studies on CF in Algeria.