INTRODUCTION AND IMPORTANCE: Conversion aphonia is a rare disease characterized by total loss of voice. It is more commonly reported in females than males, and its diagnosis is based on a comprehensive patient's clinical history, and assessment of vocal cords and other laryngeal structures using Fiberoptic laryngoscopy. Early diagnosis and phonation have a significant role in the treatment. CASE PRESENTATION: A 12-year-old medically free male patient with unremarkable medical history and normal physical, social, cognitive and emotional developmental milestones presented to the otorhinolaryngology clinic with a sudden loss of voice for a duration of 3 days with absence of other associated symptoms. A comprehensive clinical history and general examination were within normal limits, and fiberoptic laryngoscopy revealed a normal-looking laryngeal structure with intact bilateral mobile vocal cords. A diagnosis of psychogenic aphonia was the most likely cause, so speech therapy concurrent with psychotherapy was the mainstay of treatment. Improvement of the patient condition noticed and he restored his speech 4 weeks after initiation of his treatment. CLINICAL DISCUSSION: Psychogenic Aphonia is rare disorder with female predominance and younger age onset when it is compared to males. It is also known as functional neurological symptom disorder (FND) as it is not explained by underlying medical or neurological factors. It is often preceded by psychological trauma or stressors. Diagnosis of Psychogenic Aphonia is challenging and it is often missed and delayed. Accordingly, the delay in diagnosis may significantly affect the ultimate outcome for affected patients. Speech therapy concurrent with psychotherapy represents the mainstay of treatment. CONCLUSION: Being rare disorder, early recognition and diagnosis of conversion disorder with aphonia is crucial. Applying diagnostic criteria which is introduced by American Psychiatric Association in The Diagnostic and Statistical Manual of Mental Disorders (DSM) facilitate the diagnosis. Multidisciplinary approach in management of affected patients ensures better outcome.