Bernard Daniel Rostker (born February 1, 1944) was Principal Deputy Assistant Secretary of the Navy (Manpower and Reserve Affairs) from 1977 to 1979; Director of the United States Selective Service System from 1979 to 1981; Assistant Secretary of the Navy (Manpower and Reserve Affairs) from 1994 to 1998; Under Secretary of the Army from 1998 to 2000; and Under Secretary of Defense for Personnel and Readiness in 2000-2001. From 1996 to 2001, he also served as Special Assistant to the Deputy Secretary of Defense for Gulf War Illnesses.