Robert Stuart Gilchrist[3] (born 1964) is an American diplomat who had served as the principal deputy assistant secretary of state for democracy, human rights, and labor from September 2023 to August 2024.

[4] He was appointed by President Donald Trump and confirmed by the United States Senate on December 20, 2019.

[5] Gilchrist was the fifth US ambassador from the LGBT community nominated to serve by the Trump administration.

[8] On July 22, 2019, President Donald Trump announced his intent to nominate Gilchrist to be the United States ambassador to Lithuania.

Gilchrist had served as the Principal Deputy Assistant Secretary of State for Democracy, Human Rights, and Labor.