Nowa Kościelnica [ˈnɔva kɔɕt͡ɕɛlˈnit͡sa] is a village in the administrative district of Gmina Ostaszewo, within Nowy Dwór Gdański County, Pomeranian Voivodeship, in northern Poland.

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.

Nowa Kościelnica is famed for its two Mennonite houses, which date back hundreds of years.

They are considered to be the oldest standing houses in Poland.

This Nowy Dwór Gdański County location article is a stub.