Objective: The main objective of the study is to find the frequency and distribution of pediatric chest mass lesions. Methodology: This retrospective study was conducted on 110 patients, ranging in age from newborns to 18 years. All the patients were referred for imaging for respiratory or systemic signs and symptoms suggesting intrathoracic pathology, or had asymptomatic chest masses detected during evaluations for other diseases not related to the chest. Information was obtained from patients’ medical records, radiology reports, and where available from, histopathology and surgical notes. Results: Data were collected from 110 patients shows a higher incidence of chest mass lesions in children aged 6–10 years (31.8%) and the lowest in those aged 11–18 years (18.2%). Gender distribution is relatively balanced, with a slight male predominance (54.5%). Respiratory symptoms are the most common clinical presentation (40%), followed by non-specific symptoms such as fever and fatigue (25%), while 20% of cases were asymptomatic and discovered incidentally. The findings show that solid lesions are the most prevalent type of pediatric chest masses, representing 50% of cases, followed by cystic lesions at 27.3%, and mixed lesions at 13.6%. Conclusion: It is concluded that pediatric chest mass lesions, while predominantly benign, require age-specific diagnostic attention due to the distinct distribution of congenital and malignant types across age groups.