CNS infection due to Listeria monocytogenes is a rare condition that occurs primarily in immunocompromised patients. A predilection for the brainstem has been proposed but definite abscess formation is extremely rare. We report a case of necrotizing meningoencephalitis with diffuse extensive abscesses caused by Listeria monocytogenes in a chronic diabetic patient, whose diagnosis was based on blood culture and MRI findings.