The North Luzon Expressway (NLE or NLEx), formerly known as the North Diversion Road and Manila North Expressway (MNEX), is a 2 to 8-lane limited-access toll expressway that connects Metro Manila to the provinces of the Central Luzon region in the Philippines. It is a component of Radial Road 8 (R-8) of Metro Manila's road network. Its southern section from Guiguinto to Metro Manila is also designated as Expressway 1 (E1) of the Pan-Philippine Highway (AH26). It was built in the 1960s.
The expressway begins in Quezon City at a cloverleaf interchange with EDSA: a continuation of Andres Bonifacio Avenue. It then passes through Quezon City, Caloocan, and Valenzuela in Metro Manila. Meycauayan, Marilao, Bocaue, Balagtas, Guiguinto, Malolos, Plaridel, and Pulilan in Bulacan. San Simon, San Fernando, Mexico and Angeles in Pampanga. The expressway currently ends at Mabalacat and merges with the MacArthur Highway, which continues northward into the rest of Central and Northern Luzon. The segment between Santa Rita Exit and Balintawak Cloverleaf is a part of the new alignment of the Pan-Philippine Highway (AH26)