José Saraiva Martins, C.M.F. GCC is a Portuguese cardinal of the Catholic Church. He was prefect of the Congregation for the Causes of Saints from 1998 to 2008.

In the Catholic Church, the Dicastery for the Causes of Saints, previously named the Congregation for the Causes of Saints, is the dicastery of the Roman Curia that oversees the complex process that leads to the canonization of saints, passing through the steps of a declaration of "heroic virtues" and beatification. After preparing a case, including the approval of miracles, the case is presented to the pope, who decides whether or not to proceed with beatification or canonization.