Wietrzychowice [vjɛtʂɨxɔˈvit͡sɛ] is a village in the administrative district of Gmina Izbica Kujawska, within Włocławek County, Kuyavian-Pomeranian Voivodeship, in north-central Poland.
A group of megalithic tombs called Polish Pyramids have been found in the adjacent forest. They are elongated mounds with a length of up to 150 meters and a height of 2-3 meters, probably belonging to Funnelbeaker culture, 4000 years BC.