The soil nematode fauna of the meadows situated on islands in the White Sea, Lakes Onego and Ladoga (61.-65. N) was studied. The novelty of the data makes them particularly interesting. Peculiarities of the nematode fauna on islands located in different geographic latitudes of Karelia were revealed. The distinctions are seen in the nematode species diversity (soils of Lake Onego islands are the richest in species), the dominants among species and ecotrophic groups. Meadow cenoses of the White Sea islands have the lowest index of nematode fauna similarity (below 40%) as compared with southerner parts of Karelia (55-57%).