National Security Study Memorandum 200: Implications of Worldwide Population Growth for U.S. Security and Overseas Interests (NSSM200), also known as the "Kissinger Report", was a national security directive completed on December 10, 1974 by the United States National Security Council under the direction of Henry Kissinger following initial orders from President of the United States Richard Nixon.

NSSM200 was reworked and adopted as official United States policy through NSDM 314 by President Gerald Ford on November 26, 1975. It was initially classified for over a decade but was obtained by researchers in the early 1990s. The memorandum and subsequent policies developed from the report were observed as a way the United States could use human population control to limit the political power of undeveloped nations, ensure the easy extraction of foreign natural resources, prevent young anti-establishment individuals from being born and to protect American businesses abroad from interference from nations seeking to support their growing populations.