Marc Robert Stanley (born 27 May 1957) is an American trial lawyer, political activist, Jewish community leader, and philanthropist who had served as the United States Ambassador to Argentina.

[4] His national public service began in college, when he worked four years for the U.S. Congress, serving with Representatives Mo Udall (D-AZ) and Dale Kildee (D-MI), and with the Committee on House Administration as an aide to Chairman Frank Thompson (D-NJ).

[13] Secretary of Defense William Cohen appointed Stanley as a member of the board of visitors of the Air University.

[13] In 2011, Stanley was appointed by President Barack Obama as a council-member of the United States Holocaust Memorial Museum.

[14] On August 6, 2021, President Joe Biden announced his intent to nominate Stanley to be the next United States Ambassador to Argentina.