The Obion River system is the primary surface water drainage system of northwestern Tennessee, United States.

Description

thumb|left|Local swimming hole on Obion River in West [[Tennessee, February 2012]]

thumb|[[CSX Transportation|CSX railroad bridge crossing Middle Fork of Obion River northwest of Gleason, February 2012]]

The Obion has four major forks, the North Fork, Middle Fork, South Fork and Rutherford Fork (which is named after Henry Rutherford an early surveyor of the area).