The Subic Special Economic and Freeport Zone, often shortened as Subic Bay or Subic, is a special economic zone and freeport area covering portions of the city of Olongapo and the town of Subic in Zambales, and the towns of Hermosa and Morong in Bataan in the Philippines. The relatively developed and fenced area is called the Subic Bay Freeport Zone (SBFZ).

Olongapo, officially the City of Olongapo, is a 1st class highly urbanized city in the Central Luzon region of the Philippines. Located in the province of Zambales but governed independently from the province, it has a population of 260,317 people according to the 2020 census.