The Shamokin Valley Railroad (reporting mark SVRR) is a short line railroad that operates 27 miles of track in southern Northumberland County, Pennsylvania in the United States.

The rail line runs east from Sunbury, then turns south through Paxinos and Weigh Scales to Shamokin, where it turns east again, always along or near Shamokin Creek and roughly following the route of Pennsylvania Route 61.

It interchanges with the Reading Blue Mountain and Northern Railroad in Locust Summit.

The system has trackage rights via the Norfolk Southern line.

The line operated by the Shamokin Valley Railroad was formerly part of Conrail.