Klein Vierstraat British Cemetery is a Commonwealth War Graves Commission (CWGC) burial ground for the dead of the First World War located in the Ypres Salient on the Western Front in Belgium.

The cemetery grounds were assigned to the United Kingdom in perpetuity by King Albert I of Belgium in recognition of the sacrifices made by the British Empire in the defence and liberation of Belgium during the war.

The Kemmel Number 1 French Cemetery, also a First World War burial ground assigned to the United Kingdom, is located approximately 50 m to the east.

[2] It was used after the Armistice to concentrate battlefield burials and Ferme Henri Pattyn Vanlaeres and Mont-Vidaigne Military cemeteries.

[2] An American soldier was buried here, but his body was later moved to Lijssenthoek Military Cemetery.