Thomas David Boyatt (born March 4, 1933) is a former diplomat and United States Ambassador to Burkina Faso (1978–80) and Colombia (1980–83).

[4] He served in various diplomatic posts around the globe, including Vice Consul in Chile from 1960 to 1962, Assistant to the Under Secretary of the Treasury (1962–1964), Economic Officer in Luxembourg (1964–1966), and Political Counselor in Cyprus (1967–1970).

He was Director of Cyprus Affairs from 1971 to 1974, and was named a member of the Senior Seminar in Foreign Policy the following year.

Boyatt was nominated to be the United States Ambassador to Upper Volta in 1978 by President Jimmy Carter, and in 1980 he was again nominated to serve diplomatically as the United States Ambassador to Colombia.

Boyatt later became a member of the Advisory Boards of the Woodrow Wilson School at Princeton University and trustee from 1984 to 1988.