U.S. Route 26

U.S. Route 26 is an east–west United States highway. It started in Ogallala, Nebraska, and gradually grew to reach the West Coast in Oregon. When the U.S. highway system was first defined, it was limited to Nebraska and Wyoming; by the 1950s, it continued into Idaho and Oregon. The highway's eastern terminus is in Ogallala, Nebraska at an intersection with Interstate 80. Its western terminus is south of Seaside, Oregon at an intersection with U.S. Route 101. Prior to 2004, the route's last 20 miles (32 km) were co-signed with U.S. Route 101 from the highways' junction south of Seaside north to Astoria where its intersection with U.S. Route 30 was also U.S. 30's western terminus.

Much of the highway follows the path of the historic Oregon Trail. At its peak, immediately before the establishment of the interstate highway system, US 26 was 1,557 miles (2506 km) in length, and terminated in Astoria, Oregon.