Puerto Princesa (Tagalog pronunciation: [ˌpwɛɾ.to pɾɪnˈsɛ.sɐ], American Spanish: Spanish pronunciation: [ˈpweɾto pɾinˈsesa] , European Spanish: Spanish pronunciation: [ˈpweɾto pɾinˈθesa] ), officially the City of Puerto Princesa (Cuyonon: Siyudad i'ang Puerto Princesa; Filipino: Lungsod ng Puerto Princesa), is a highly urbanized city in the Mimaropa region of the Philippines. According to the 2020 census, it has a population of 307,079.

It is a city located in the western Philippine province of Palawan and is the westernmost city in the Philippines. Though the seat of government and capital of the province, the city itself is one of 38 independent cities within the Philippines not controlled by the province in which it is geographically located and is therefore an independent area located within Palawan for its geographical and statistical purposes by the Philippine Statistics Authority. It is the largest city in the province of Palawan and the Mimaropa region.

It is the least densely populated city in the Philippines with 110 inhabitants per square kilometer (280 inhabitants/sq mi). In terms of land area, the city is the second largest geographically after Davao City with an area of 2,381.02 square kilometers (919.32 sq mi). Puerto Princesa is the location of the Philippines' Western Command headquarters.

Today, Puerto Princesa is a tourist city with many beach resorts and seafood restaurants. It has been acclaimed several times as the cleanest and greenest city in the Philippines.