Three species of Polypedates frogs (Rhacophoridae) from Borneo, Malaysia, were examined for helminths: Polypedates colletti (n = 5), P. macrotis (n = 8), and P. otilophus (n = 5). We found 3 species of Nematoda: Cosmocerca ornata, Raillietnema rhacophori, and Physalopteroides sp. Cosmocerca ornata was the only helminth infecting all 3 rhacophorid species. The most numerous helminth (too numerous to count) was R. rhacophori in P. otilophus. The 3 species of Polypedates are parasitized by generalist helminths that also infect other species of anurans. Four new host records are reported.