Mohammed Nasif Kheirbek
 Mohammed Nasif Kheirbek (Arabic: محمد ناصيف خيربك‎ born 10 April 1937) is the current deputy vice-president for security affairs in Syria. He is a close adviser of Syrian President Bashar Assad and is Syria's point-man for its relationship with Iran and Lebanon's Shia militias. He is one of a number of officials sanctioned by the European Union for the use of violence against protesters participating in the Syrian civil war.