Reuben Lindsay Walker (May 29, 1827 – June 7, 1890) was a Confederate general who served in the artillery during the American Civil War.

When the Civil War began, Walker took command of the Purcell Artillery unit.

After seeing action at the First Battle of Bull Run (First Manassas), Walker became the chief of artillery to General A.P.

He had direct command of all the corps' artillery battalions thereafter, including in the Overland Campaign and the Siege of Petersburg.

Walker died in Fluvanna County, Virginia, and was buried in Richmond's famous Hollywood Cemetery.