Late postpartum eclampsia is defined as the onset of a seizure more than 48 hours after delivery. Posterior reversible encephalopathy syndrome (PRES) is a clinical-radiological entity characterized by clinical manifestations such as seizures, headaches, visual disturbances, altered mental status, and characteristic magnetic resonance imaging findings, including sub-cortical vasogenic edema at the bilateral parietal and occipital lobes. Late postpartum eclampsia concurrent with PRES is rare, and not always preceded by preeclampsia before delivery. We report the case of a 26-year-old woman who developed PRES with late postpartum eclampsia 5 days after cesarean delivery but did not have hypertensive disease during pregnancy.