Manuel de Sarratea, (Buenos Aires, 11 August 1774 – Limoges, France, 21 September 1849), was an Argentine diplomat, politician and soldier.

One of the Triumvirate's political accomplishments was a treaty signed with viceroy Francisco Javier de Elío, where the Banda Oriental (present-day Uruguay was ceded to the crown.

Arriving in Spain he offered the recently restored king, Ferdinand VII, the submission of the United Provinces to the Spanish crown under a certain autonomy.

Sarratea returned to Buenos Aires in mid-1816, and was named government minister of foreign relations for the Supreme Director, Juan Martín de Pueyrredón.

He later resigned for health reasons and made contacts within the porteño political opposition, so he was expelled and exiled to Montevideo by order of the same Director.

When the Buenos Aires military found he was to deliver armament, they raised against him, and deposed him on 6 March, replacing him with general Balcarce.

Sarratea could not contain the permanent state of anarchy in the province, nor gain the obedience and trust of the military, so he was forced to resign at the end of May.