Commonwealth Avenue, formerly known as Don Mariano Marcos Avenue, named after the father of President Ferdinand Marcos, is a 12.4-kilometer highway located in Quezon City, Philippines, which spans from 6 to 18 lanes and is the widest in the Philippines. It is one of the major roads in Metro Manila and is designated as part of Radial Road 7 of the older Manila arterial road system and National Route 170 of the Philippine highway network.
Commonwealth Avenue starts from the Quezon Memorial Circle inside the Elliptical Road, and it passes through the areas of Philcoa, Tandang Sora, Balara, Batasan Hills and ends at Quirino Highway in the Novaliches area.
Address 41 Commonwealth Avenue, Quezon City 1118, Philippines
Coordinates 14°42'23.665" N 121°3'59.811" E