Potenciano Lesaca y García (January 1, 1871 – October 4, 1941) was a Filipino politician and businessman who became the first civil governor of Zambales, a province of the Philippines in the Central Luzon region.

Born on 1 January 1871, in Botolan, Zambales, Philippines, the son of Luis Lesaca y Navarro and Juana García y Abellana, he became the first civil governor of Zambales, a province of the Philippines in the Central Luzon region.

He first worked as a census inspector and later president of the commission which installed the civil government of Zambales.

He was an honorary member of the mission that represented the Philippine Islands in the Universal Exposition at St Louis Missouri in 1914.

[4] As a lawmaker, Lesaca had interests in the agricultural industry, specifically livestock.