National Route 651 (N651) forms a part of the Philippine highway network. It is one of the national secondary roads with two non- sections, one which runs through the city of Carmona, Cavite in the Calabarzon region, while the other road runs within the island of Catanduanes in the Bicol Region.
N651 runs through the section of Governor's Drive in the city of Carmona, Cavite, where the road is also known as Carmona Diversion Road as it bypasses the city proper. Upon reaching the Carmona Rotonda, the rest of the road going to the province of Laguna is merged by N65.
In the Catanduanes province, N651 runs through the municipalities of Panganiban and Caramoran, where the entire signed road is known as PanganibanâÂÂSabloyon Road. It connects with N650 (Catanduanes Circumferential Road) on both ends.