In the period from November 2004 to March 2005 the prevalence of gastro-intestinal nematodes of 165 foxes (Vulpes vulpes L.) from the Pomerania region was examined. These parasites were found in 66.1% of examined foxes. Toxocara canis was the most frequent parasite and was observed in 33.9% of examined animals. Toxascaris leonina was found in 1.2%, Uncinaria stenocephala in 25.5%, Ancylostoma caninum in 6.7 and Trichuris vulpis in 10.3% of the examined foxes.