Zezuj [ˈzɛzui̯] is a village in the administrative district of Gmina Stawiguda, within Olsztyn County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 2 kilometres (1 mi) south-west of Stawiguda and 17 km (11 mi) south-west of the regional capital Olsztyn.

Before 1772 the area was part of Kingdom of Poland, in 1772–1871 of Prussia, in 1871–1945 of Germany, and since 1945 of Poland.