Víctor Manuel "Tucho" Fernández is an Argentine prelate of the Catholic Church and a theologian. He is currently the head of the Dicastery for the Doctrine of the Faith.
He served as rector of the Pontifical Catholic University of Argentina from December 2009 to April 2018. He was named Archbishop of La Plata on 2 June 2018. On 1 July 2023, Pope Francis named Fernández prefect of the Dicastery for the Doctrine of the Faith as of mid-September. Pope Francis made Fernández a cardinal on 30 September 2023.