The Buttes New British Cemetery (New Zealand) Memorial is a World War I memorial, located in Buttes New British Cemetery, near the town of Zonnebeke, Belgium. The memorial lists 378 officers and men of the New Zealand Expeditionary Force with no known grave who were killed between September 1917 and May 1918 while serving in the Polygon Wood Sector or in the Battle of Polygon Wood. The Polygon Wood Sector was part of the Ypres Salient, and many of the deaths in the period in question were due to the conditions in the trenches during the winter of 1917 to 1918.