As the medical complexity of pregnant patients increases, the rate of maternal morbidity has risen. Maternal cardiovascular disease is a leading cause of maternal morbidity and mortality followed closely by sepsis and infection, both of which may be associated with respiratory failure. There has been an expansion in the application of extracorporeal life support in pregnant and peripartum patients which requires obstetric anesthesiologists to understand the indications, obstetric and medical considerations, relative advantages and potential complications of this invasive technology in this population. Obstetricians and anesthesiologists who care for women on the labor floor must strive to recognize at-risk and deteriorating patients, facilitate escalation of care when appropriate, and engage consultant teams to consider the need for extracorporeal support in high-risk circumstances. This article reviews the epidemiology, indications, specific considerations, potential complications, and outcomes of extracorporeal life support in pregnant and peripartum patients.