Międzyłęż is a village in the administrative district of Gmina Pelplin, within Tczew County, Pomeranian Voivodeship, in northern Poland. It lies approximately 10 km east of Pelplin, 19 km south-east of Tczew, and 49 km south of the regional capital Gdańsk. It is located within the ethnocultural region of Kociewie in the historic region of Pomerania. The settlements Stary Międzyłęż and Nowy Międzyłęż are integral parts of the village. Międzyłęż was a royal village of the Polish Crown, administratively located in the Tczew County in the Pomeranian Voivodeship.