Meningiomatosis is defined as the presence of more than two meningiomas at different intracranial sites, in the same time in the absence of neurofibromatosis. Family forms are extremely rare. We report two cases of a family meningiomatosis in half brothers. The youngest presented a partial motor seizure with secondarily generalization and headache. Physical examination was normal. Cerebral MRI showed numerous T1 isosignal formations and multiples foci with hyperoedematous flair signal in T2 hyposignal enhanced after injection of contrast medium, suggestive of meningiomatosis. They received only symptomatic treatment. The prognosis is generally good with a good quality of life despite the multiplicity of lesions, the potential number of recurrences or multiple surgeries.