Kathmandu Outer Ring Road (National Highway 38, NH38) is a proposed ring road to be constructed in the Kathmandu Valley, categorised as a national highway.

It will be constructed on the outer side of the existing ring road (NH39).

It will pass through three districts of Bagmati Province: Kathmandu, Bhaktapur and Lalitapur.

[1][2] The concept of constructing a 72-kilometre (45 mi) outer ring road circling the three districts—Kathmandu, Lalitpur and Bhaktapur—was introduced in the year 2058 BS (2001 AD).

[4] The highway will be eight-lane road 50 metres (160 ft) wide (with a 6-metre (20 ft) setback on either side), cycle tracks, greenbelts and pavements on both the sides, along with flyovers at major junctions.