The Seobu Urban Expressway (Korean: 서부 간선 도로; Seobu Ganseon Doro) is 4-lane highway located in Seoul, South Korea.

It is part of National Route 1.

This route connect Seohaean Expressway (Geumcheon Interchange) to Mapo District (Seongsan Bridge), with a total length of 9.8 km (6.1 mi).

The highway is linked to the southwestern Metropolitan area, including Seoul and Anyang, light serves to facilitate transporting the cargo volume and alleviate traffic congestion in the metropolitan area southwest.

The expressway was built between 1987 and 1991.