Philippine National Railways, also known by its acronym, PNR, is a state-owned railway system in the Philippines, organized under the Department of Transportation and Communications (DOTC) as an attached agency. Established during the Spanish colonial period, the modern PNR was developed only in 1984. It currently operates around 1,060 kilometres of track on the island of Luzon, where most Philippine rail infrastructure is located. Because of this, PNR has become synonymous with the Philippine rail system.
A portion of the PNR network, specifically the Metro Manila portion of the network, is part of the Strong Republic Transit System (SRTS), and overall public transport system in the metropolis. It forms the backbone of all of Metro Manila's regional rail services, which extend to its suburbs and to provinces such as Laguna. However, other than reducing growing traffic congestion due to the rising number of motor vehicles in Metro Manila, PNR also aims to link key cities within in the Philippines efficiently and to serve as an instrument in national socio-economic development. However, the meeting of that goal has been beset with problems regarding degraded infrastructure and a lack of government funding, problems that are being rectified with current rehabilitation efforts. The rehabilitation of PNR, which has been touted by various administrations, seeks to not only tackle those problems, but also to spur Philippine economic growth through an efficient railway system.