Four Hypnales mosses from three pleurocarpous families are recorded in Borneo for the first time. They are Neonoguchia auriculata (Copp. ex Thér.) S.H. Lin (Meteoriaceae), Oxyrrhynchium bergmaniae (E.B. Bartram) Huttunen & Ignatov (Brachytheciaceae), Thamnobryum latifolium (Bosch & Sande Lac.) Nieuwl. (Neckeraceae), and Trachycladiella sparsa (Mitt.) M. Menzel (Meteoriaceae). The specimens were collected from Nuluhon Trusmadi Forest Reserve in Sabah, Malaysian Borneo. Descriptions and illustrations of the four species as well as notes on their distribution and distinguishing characteristics are provided.