The PNR South Long Haul Project, also known as PNR Bicol is an upcoming inter-city rail line in southern Luzon, Philippines. It is part of the larger Luzon Rail System, a network of long-distance standard-gauge lines being built by the Philippine National Railways throughout Luzon. It is one of the two lines that will reconstruct the historic PNR South Main Line, along with the electrified North–South Commuter Railway South section to Calamba, Laguna.