National Highway 17, commonly referred to as NH 17, is a busy National Highway in India that runs roughly north–south along the western coast of India, parallel to western ghats. It connects Panvel (south of Mumbai city) to Edappally (in Kochi city, passing through the states of Maharashtra, Goa, Karnataka, and Kerala. It is the 7th longest highway in India with a length of . It has been now renumbered as NH-66.