In Poland, Batrachochytrium dendrobatidis has been first reported in 2009. Here, we present the results of the study planned to obtain an overview of its distribution on two areas of northeastern Poland. During the summer 2009 and 2010 the skin samples of Rana kl. esculenta and Rana lessonae were collected from Mazury Lakeland and in 2010- specimens of those two species and Rana temporaria from Suwalki Lake District. The occurrence of Batrachochytrium dendrobatidis sporangia in the skin of investigated amphibians was tested using histological techniques. We identified a fungal skin infection in 11 of 46 specimens of all three species.