The Gordon Monument is a neoclassical monument to a slain warrior on the battlefield of Waterloo. The person commemorated is Lt Colonel Sir Alexander Gordon (1786–1815).^[1] It was erected in 1817 by the siblings of the deceased who included a future Prime Minister, Lord Aberdeen.

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The monument takes the form of a severed column, or colonne brisée to use the French term, reached by a flight of steps. It was designed by the British architect John Buonarotti Papworth,^[2] and executed in a type of limestone known as Belgian blue stone (French: pierre bleue).

The pedestal features inscriptions and reliefs, including the badge of the Scots Guards, the regiment in which Gordon served, with its motto Nemo me impune lacessit

The monument is on the boundary between two Francophone municipalities, Braine-l'Alleud and Lasne. The historic area commemorating the Battle of Waterloo is currently administered by these municipalities and Waterloo.

Other monuments of interest on the Battlefield of Waterloo include one to the King's German Legion (Monument aux Hanovriens) which was erected in 1818 near the Gordon Monument.

There are also monuments of interest commemorating the Battle of Quatre Bras.^[5]