Information on the parasites of freshwater and brackish-water fishes of Hiroshima Prefecture, Japan, published between 1925 and 2012 is assembled as Parasite-Host and Host-Parasite lists. A total of 50 nominal species of the following groups have been reported: Mesomycetozoea (1 species), Euglenozoa (1), Apicomplexa (2), Ciliophora (2), Myxozoa (6), Trematoda (31), Monogenea (6), Cestoda (2), Nematoda (3), Hirudinida (1), Bivalvia (2), Copepoda (5) and Branchiura (2). Information on the parasites not identified to species level is also given, including the species of Euglenozoa, Ciliophora, Myxozoa, Trematoda, Monogenea, Nematoda and Acanthocephala.