Alvarez Silal Isnaji (born February 19, 1946) is a Filipino politician who served as acting governor of the Autonomous Region of Muslim Mindanao after Nur Misuari was removed in 2001. He served briefly from September 3, 2001 till October 11, 2001 until Parouk S. Hussin became governor. In 2007 he became mayor of Indanan, Sulu but was impeached in June, 2008 over the kidnapping of Ces Drilon and her cameramen. His son Haider was also charged.