Grochowo Trzecie [ɡrɔˈxɔvɔ ˈtʂɛt͡ɕɛ] is a village in the administrative district of Gmina Sztutowo, within Nowy Dwór Gdański County, Pomeranian Voivodeship, in northern Poland. It lies approximately 3 kilometres (2 mi) south-east of Sztutowo, 12 km (7 mi) north-east of Nowy Dwór Gdański, and 38 km (24 mi) east of the regional capital Gdańsk.

Before 1772 the area was part of Kingdom of Poland, 1772-1919 Prussia and Germany, 1920-1939 Free City of Danzig, 1939 - February 1945 Nazi Germany. For the history of the region, see History of Pomerania.