The Le Trou Aid Post Cemetery is a World War I cemetery located in the commune of Fleurbaix, in the Pas-de-Calais departement of France, about 3 kilometres (1.9 mi) south of the village of Fleurbaix on the D175 road (rue de Pétillon).

[1] British soldiers of the 19th Infantry Brigade made the earliest burials at the site in October 1914 during the First Battle of Ypres.

[2] This number nearly tripled after a postwar consolidation of war burial sites, when Le Trou Aid Post was expanded by the architect Sir Herbert Baker.

[2] Described as one of Baker's most sentimental works,[3] the rural site is surrounded by a narrow moat and sheltered by a grove of weeping willows.

[2] The dead represent the battlefields of Ypres, Le Maisnil (October 1914), Aubers Ridge (May 1915), Loos (September–October 1915), and Fromelles (July 1916).