San Luis, officially the Municipality of San Luis, is a 3rd class municipality in the province of Pampanga, Philippines. According to the 2020 census, it had a population of 58,551 people.

Pampanga, officially the Province of Pampanga, is a province in the Central Luzon region of the Philippines. Lying on the northern shore of Manila Bay, Pampanga is bordered by Tarlac to the north, Nueva Ecija to the northeast, Bulacan to the east, Manila Bay to the central-south, Bataan to the southwest and Zambales to the west. Its capital is the City of San Fernando. Angeles City is the largest LGU, but while geographically within Pampanga, it is classified as a first-class, highly urbanized city and has been governed independently of the province since it received its charter in 1964.