César Carballo Cardona (1968) is a Spanish physician and emergency medicine doctor. He is an emergency service physician at the Hospital Universitario Ramón y Cajal and vice president of the Sociedad Española de Medicina de Urgencias y Emergencias (SEMES) of Madrid. He is a prolific television guest since the beginning of the COVID-19 pandemic in Spain, having been called by the Huffington Post one of the most recognizable medical experts of the Spanish crisis.