Robert Alexander Reid (January 22, 1842 – April 25, 1929) was a Union Army soldier in the American Civil War who received the U.S. military's highest decoration, the Medal of Honor, for his actions at the Second Battle of Petersburg.

Born on January 22, 1842, in the Raploch district of Stirling, Scotland, Reid joined the Army from Pottsville, Pennsylvania.

[1][2] At the Second Battle of Petersburg on June 17, 1864, Reid's division, under Brigadier General Robert Brown Potter, launched a stealthy pre-dawn attack on a Confederate-held farmhouse known as the Shand House.

One of his fellow soldiers from the 48th Pennsylvania, Corporal Patrick Monaghan, also received the Medal of Honor for his part in the same attack.

[1][2] Reid's official Medal of Honor citation reads: Capture of flag of 44th Tennessee Infantry (C.S.A.).