David Harold McCormick is an American businessman and politician. McCormick served as the CEO of Bridgewater Associates, one of the world's largest hedge funds, from 2020 to 2022. He is the husband of former Deputy National Security Advisor for Strategy, Dina Powell.

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.