Zonnebeke is a municipality located in the Belgian province of West Flanders. The municipality comprises the villages of Beselare, Gheluvelt, Passendale, Zandvoorde and Zonnebeke proper. On January 1, 2006, Zonnebeke had a total population of 11,758. The total area is 67.57 km2 which gives a population density of 174 inhabitants per km2.

The 171st Tunnelling Company was one of the tunnelling companies of the Royal Engineers created by the British Army during World War I. The tunnelling units were occupied in offensive and defensive mining involving the placing and maintaining of mines under enemy lines, as well as other underground work such as the construction of deep dugouts for troop accommodation, the digging of subways, saps, cable trenches and underground chambers for signals and medical services.