Felix (died 818) was a Christian bishop and theologian. He served as bishop of Urgell (783–99) and advocated the christology known as Spanish Adoptionism because it originated in the lands of the former Visigothic Kingdom in Spain. He was condemned for heresy and all his writings were suppressed. They are known today only through quotations contained in the writings of his opponents.
Felix became bishop at an unknown date and lived at the monastery of Sant Sadurní de Tavèrnoles, in the foothills of the Pyrenees. Before coming to prominence for his adoptionist Christology, he wrote an apology for Christianity against Islam, Against the Saracen. This work is now thought to be lost. In 788, Felix attended a provincial synod in the Archdiocese of Narbonne and signed the conciliar acts. A denunciation of Felix was later attached to these acts because of the presence of Felix's name.
