Antonio Fominoya (born in Mollet del Vallès, Spain, in 1769) was a Spanish soldier who served as the governor of Socorro and fought in the Ecuadorian War of Independence and in the Spanish reconquest of New Granada.

Since he was little he had a strong attachment to military life joining the Corps Guard in 1789.

The colonel engaged the rebels from the Free Province of Guayaquil, but was defeated in the Battle of Camino Real (November 1820).

After his defeat, president Aymerich sent his to Venezuela, responding to Pablo Morillo's request to send an ambassador from Quito.

Colombia had fallen under the power of the Patriots in the Battle of Boyacá (August 1819), so Fominoya traveled to Venezuela the following year to discuss a peace treaty with Simón Bolívar.