Leon Baqueiro Poullada (April 13, 1913 – July 17, 1987) was an American diplomat, the son of a Mexican immigrant medical doctor, and served as an Ambassador to Togo under the Kennedy Administration.

In his 17-year diplomatic career, Poullada served in Ceylon, Pakistan and Afghanistan before President Kennedy nominated him as Ambassador to the nation of Togo in 1961.

After retiring in 1965 from the Foreign Service, Poullada began studies at Princeton University for a doctorate in political science, he specialized in Afghan history.

His dissertation, titled "Reform and Rebellion in Afghanistan, 1919–1929", a study of Afghan history between 1919 and 1929, was published in 1972 by Cornell University Press.

Poullada taught political science at the Northern Arizona University at Flagstaff and lectured around the country on Afghanistan and United States diplomacy.