Sa’ban is one of the remoter languages of Borneo, on the Sarawak–Kalimantan border. The language is known as hmeu Sa'ban in the Sa'ban language.^[2]

Sa'ban is a member of the Apo Duat subgroup of languages, which also includes Kelabit, Lun Bawang/Lundayeh and Tring.^[3] Collectively, they belong to the North Sarawak subgroup of the Austronesian family.^[4] Today, the Sa'ban people live in Long Peluan, Long Banga' and Long Balong in Sarawak, Malaysia. There are also Sa'ban groups in Kalimantan, Indonesia.^[2]

The Sa'ban language has several sounds that are rare among the world's languages. These include voiceless nasal and liquid consonants^[2] and a distinction between long and short vowels as well as long and short consonants. Some examples of words with voiceless nasals and liquids are given in the table below. They have a stative reading in contrast to long consonants:^[2]

• Blust, Robert A. (1997-01-01). "Ablaut in Northwest Borneo". Diachronica. 14 (1): 1–30. doi:10.1075/dia.14.1.02blu. ISSN 0176-4225.
• Blust, Robert (2001). ‘Language, Dialect and Riotous Sound Change: The case of Sa’ban’. In Graham W. Thurgood (ed.) Papers from the Ninth Annual Meeting of the Southeast Asian Linguistics Society, 249–359. Tempe: Arizona State University.
• Clayre, Beatrice (1972). "A preliminary comparative study of the Lun Bawang (Murut) and Sa’ban languages of Sarawak". Sarawak Museum Journal 20: 40-41, 45-47.
• Clayre, Beatrice (1994). ‘Sa’ban: a case of language change’. In Peter W. Martin (ed) Shifting Patterns of Language Use in Borneo, 209-226. Williamsburg VA: Borneo Research Council.
• Clayre, Beatrice (2005). "Kelabitic languages and the fate of ‘focus’: evidence from the Kerayan". In I Wayan Arka & Malcolm Ross (eds.) The many faces of Austronesian voice systems: some new empirical studies, 17-57. Canberra: Pacific Linguistics.
• Clayre, Beatrice (2014). ‘A preliminary typology of the languages of Middle Borneo’. In Peter Sercombe, Michael Boutin & Adrian Clynes (eds.) Advances in research on cultural and linguistic practices in Borneo, 123-151. Phillips, Maine USA: Borneo Research Council.
• Clayre, I. F. C. S. (1973). "The Phonemes of Sa'ban: A Language of Highland Borneo". Linguistics. 11 (100). doi:10.1515/ling.1973.11.100.26. ISSN 1613-396X. S2CID 144279499.
• Omar, Asmah Haji (1983). The Malay Peoples of Malaysia and Their Languages. Kuala Lumpur: Art Printing Works.