Office of the Special Envoy to Monitor and Combat Antisemitism

The Office of the Special Envoy to Monitor and Combat Antisemitism (formerly the Office to Monitor and Combat Anti-Semitism) is an office of the Under Secretary for Civilian Security, Democracy, and Human Rights at the United States Department of State. The office "advances U.S. foreign policy on antisemitism" by developing and implementing policies and projects to support efforts to combat antisemitism.

The head of the office is the Special Envoy for Monitoring and Combating Antisemitism (SEAS), who reports to the U.S. Secretary of State. In 2021, the special envoy was elevated to an ambassador-at-large nominated by the U.S. president and confirmed by the U.S. Senate. The position was previously appointed by the secretary of state.