Hypertension affects about 10% of pregnancies and is a leading cause of both maternal and fetal morbidity and mortality worldwide. Hypertension in pregnancy includes a spectrum of conditions, including preeclampsia or eclampsia, chronic arterial hypertension, gestational hypertension, and pulmonary hypertension. In this review article, current data and recommendations are summarized regarding definitions, diagnoses, and treatment options for hypertensive disorders in pregnancy.