Alonso de Arce y Soria (1654 - 1714) was a Spanish army's officer and politician,[2] who served during the Viceroyalty of Peru as governor of Buenos Aires.

He performed his military career in the Reales Ejércitos, serving for more than forty years in Flanders.

[4] He arrived in Buenos Aires in 1712 from Madrid,[5] where he had purchased the title of Governor and Captain general of the Río de la Plata provinces.

[6] He died on October 2, 1714, being replaced by Sergeant Major José Bermúdez de Castro.

[7] His son Alonso Arce Arcos, was married to María Báez de Alpoim, daughter of Juan Báez de Alpoim and Sabina Lavayén, belonging to a distinguished family of Buenos Aires.