A case of a melanotic cerebellar tumor in a three year old child is described. The tumor has a close histological resemblance to the melanotic neuroectodermal tumor of infancy occurring extracranially. Despite this, the histological appearance, the site of involvement, the age incidence, and the malignant behavior of the tumor are similar to that of the usual medulloblastoma. Furthermore, the predominating cellular element of the tumor is indistinguishable from that of the medulloblastoma. The melanotic cerebellar tumor is, therefore, considered to be a variant of medulloblastoma and is designated as melanotic medulloblastoma.