Miguel Gerónimo de Esparza (1678–1767) was a Spanish nobleman, who served during the Viceroyalty of Peru as Attorney and Regidor of Buenos Aires.

[4] Esparza bought the title of perpetual regidor of the city of Buenos Aires in 1718, and made his oath before the notary Don Francisco de Merlo, on March 18 of the same year.

He participated in the negotiations between the City Council and John Truppe (president South Sea Company),[5] on the sale of 25 thousand bull leathers to the Asiento de Inglaterra.

He also took part in the debates due to the problems arising from the Portuguese settlements in the Banda Oriental[8] the issue of the Guerra del Asiento, between Spain and England,[9] the cobblestone work of the Riachuelo riverbank,[10] the question of the incursions of the Pampas tribes,[11] and matters related to the death of Ferdinand VI, and the assumption of his successor Charles III.

In 1731, Esparza was designated as Fiel Ejecutor, a charge that consisted in the inspection and control of commercial activity in the Río de la Plata.

[20] In 1744, he was appointed by the governor Domingo Ortiz de Rosas, to take charge of the completion of the padron (census) of the city of Buenos Aires.

He took part in various military campaigns against the incursions of the Pampas, including his actions against the tribes of the Calelián chief in the northern territories of the Province of Buenos Aires.

[30] He and his wife were parents of several children including Juan Miguel de Esparza, a distinguished government official of the city, who served as regidor and alcalde.

María was married to Gabriel Ximénez, born in Biscay, and Inés with Juan de Zenarro, native of Pasaia, Gipuzkoa.