Marcia Stephens Bloom Bernicat is an American diplomat who is the current Director General of the Foreign Service. She is a former United States Ambassador to Bangladesh. She served as Ambassador to Senegal and Guinea-Bissau from 2008 to 2011. From January 1, 2019, to April 3, 2020, she was Principal Deputy Assistant Secretary in the Bureau of Oceans and International Environmental and Scientific Affairs at the Department of State.

The Director General of the Foreign Service is the designated manager of the United States Foreign Service.