Samuel David Berger (December 11, 1911 – February 12, 1980) was an American diplomat who served as United States Ambassador to Korea from 1961 to 1964.

At the University of Wisconsin, where he studied economics and philosophy under Selig Perlman, he met his future wife, Margaret Fowler.

[5] Confirmed by the Senate on June 12,[6] he arrived in Seoul on June 24, in the immediate aftermath of May 16 coup, noting that the relationship between the United States and the Republic of Korea remained strong;[7] a theme that he echoed when he presented his diplomatic credentials to Yun Posun, referring only to a "period of transition".

[9] As ambassador, Berger cultivated a reticent attitude toward the media, as evinced by his moniker, "Silent Sam.

[14] In 1972, he left South Vietnam, believing the Communists would not win,[15] and returned to the United States,[2] where he worked at the Foreign Service Institute before he retired in 1974.