The Australian genus Pediomorphus Chaudoir, 1878 is reviewed and eight new species are described: Pediomorphus maximus Will, new species and Pediomorphus crenulatus Will, new species from New South Wales; Pediomorphus minor Will, new species from South Australia; Pediomorphus punctatus Will, new species from Northern Territory; Pediomorphus storeyi Will, new species from Queensland; Pediomorphus semilaevis Will, new species from Northern Territory and Queensland; Pediomorphus robustus Will, new species from Queensland and Western Australia; and Pediomorphus obtusus Will, new species from Queensland, Northern Territory, and Western Australia. A key to the 13 species of the genus is provided.