Efficient delivery of therapeutic antibodies into the central nervous system (CNS) remains severely limited by the restrictive nature of the blood-brain barrier (BBB). Receptor-mediated transcytosis (RMT) has emerged as a promising strategy to enhance antibody transport across the BBB. In this Viewpoint, we highlight recent advances in RMT-based antibody delivery, focusing specifically on three representative BBB receptors: transferrin receptor (TfR), insulin receptor (InsR), and neonatal Fc rec...