The aim of this paper is to put on record an occurrence of fossiliferous spelean sediments at Naungkwe Taung, Myanmar, not far from the mouth of the Salween River where it debouches into the Martaban Gulf, Andaman Sea. The fauna from the deposits includes a diversity of mammals (suids, cervids, bovids, ursid carnivores) among which there is an extinct suid of diminutive dimensions related to the Pygmy Hog (Porcula salvania) and a larger species close in size to the extant Warty Pigs (Dasychoerus verrucosus). The small suid is morphometrically close to the species “Sus” sangiranensis from Sangiran, Java, and “Sus” xiaozhu from Bijiashan, China, and slightly larger than extant Porcula salvania. The fossiliferous deposits at Naungkwe Taung, Kayin State, Myanmar, correlate best to Bijiashan Cave, China, to the younger part of the Liucheng Cave succession, China, and part of the sequence at Sangiran, Java. A Middle Pleistocene age is suggested.