United States Ambassador to Spain

Ambassador of the United States to Spain Embajador de los Estados Unidos en España
Seal of the United States Department of State
Incumbent James Costos since August 1, 2013
Nominator	President of the United States
Inaugural holder	John Jay as Minister Plenipotentiary
Formation	September 29, 1779
Website	U.S. Embassy - Madrid

This is a list of United States Ambassadors to Spain from 1779 to the present day.

U.S. diplomatic terms

Note: In 1825 the ministry was upgraded to Envoy Extraordinary and Minister Plenipotentiary.

Note: In August 1913, the title of the office was changed to Ambassador Extraordinary and Plenipotentiary. This required a new commission.

Note: Beginning in 1998, The ambassador to Spain was also accredited to Andorra.