The objective of the study was the estimation of the degree of heavy metal contamination of the soils of the Błędowskie Swamp and the determination of correlation between the content of organic carbon in the soils and their concentration of heavy metals. It was found that the Błędowskie swamp soils are characterised by high and highly diversified heavy metal concentration between different soil types as well as different levels of soil. On the basis of an analysis of the results obtained it can be concluded that the contents of Cd and Pb in the studied soils exceeded the allowed values for soils of protected areas (Group A), as well as for soils of agricultural lands (Group B) and, in a small part of the studied soil profiles, for soils of industrial areas, fossil sites, and transport route areas (Group C). Only in a part of the soil profiles studied the content of Cu, Cr and Ni exceeded the allowed values for soils of protected areas (Group A). Statistical analysis of the results showed that the content of most of the heavy metals in soils of Błędowskie swamp was significantly positively correlated with organic carbon content.