Stuttering is a psychological, neurological and neurophysiological rhythmic disorder in an understandable speech that is characterized by hesitation in speech flow, standstill with repeating a word or a sound, extension of a sound. Etiology of stuttering is not exactly known. In this case presentation, it is aimed to discuss the disappearance of stuttering in an 11 year old child who was diagnosed with stuttering and ADHD after treating with methylphenidate extended release. [Anadolu Psikiyatri Derg 2016; 17(0.300): 71-73]