National Route 129 (N129) or simply Route 129 is a secondary national route in Metro Manila that forms part of the Philippine highway network.[1][2][3] Entirely located within Quezon City, it comprises Congressional Avenue, Congressional Avenue Extension, portion of Luzon Avenue, portion of Tandang Sora Avenue, and portion of Katipunan Avenue; most of them are part of C-5 with the exception of EDSA–Mindanao Avenue segment.