James Wilson "Bud" Nance was a United States Navy officer who was the 10th Deputy National Security Advisor from 1981 to 1982, also briefly the acting National Security Advisor. A childhood friend of Senator Jesse Helms, he later worked as a Congressional aide.

The United States Deputy National Security Advisor is a member of the Executive Office of the President of the United States and the United States National Security Council, serving under the President's National Security Advisor.