<p>Ectopic cervical thymus (ECT) is a rare congenital anomaly resulting from the aberrant descent of thymic tissue during embryogenesis. While often asymptomatic, it can present as a neck mass in paediatric patients, leading to diagnostic uncertainty due to its resemblance to more common cervical lesions. We report two paediatric cases of ECT presenting as neck swelling. Both patients were asymptomatic aside from the presence of the mass. Clinical evaluation, supported by imaging, revealed characteristic features consistent with ectopic thymic tissue. ECT should be considered in the differential diagnosis of paediatric neck masses. A high index of suspicion, combined with appropriate imaging, is crucial for accurate diagnosis and management. Although rare, recognition of this entity can prevent misdiagnosis and unnecessary extensive surgical exploration. Awareness of ECT as a differential diagnosis for paediatric neck masses can aid in timely diagnosis and appropriate intervention, minimising complications and guiding optimal patient care.</p>