Diosdado "Dado" Madarang Peralta is a Filipino attorney and jurist who served as the chief justice of the Philippines from 2019 to 2021. He previously served as an associate justice of the Supreme Court of the Philippines from January 13, 2009, to October 22, 2019. He is the third Sandiganbayan presiding justice to be appointed to the high tribunal.

The chief justice of the Philippines presides over the Supreme Court and is the highest judicial officer of the government of the Philippines. As of April 5, 2021, the position is currently held by Alexander Gesmundo, who was appointed by President Rodrigo Duterte following the early retirement of his predecessor, Diosdado Peralta, in March 2021.