TheSigulai language (also calledSibigo,Sikule,Ageumeui, orWali Banuah) is anAustronesian language spoken onSimeulue island off the western coast ofSumatra inIndonesia.^[3] It belongs to theMalayo-Polynesian branch of the Austronesian languages. Sikule is one ofNorthwest Sumatra–Barrier Islands languages, which are a sub-group ofWestern Malayo-Polynesian.^[4]

Sikule is spoken inSalang,Alafan andSimeulue Baratdistrict, on the northern ofSimeulue island. It is apparently related to theNias language.^[5]Ethnologue listsLekon andTapah as dialects.^[2]

Simeulue is spoken in the rest of Simeulue outside of Alafan, whileJamu (also calledKamano), related toMinangkabau, is spoken in the capital city ofSinabang.

The vowel and consonant phonemes of Sikule are shown in the tables below.^[6]

• Simeulue language

• Adelaar, Alexander,The Austronesian Languages of Asia and Madagascar: A Historical Perspective, The Austronesian Languages of Asia and Madagascar, pp. 1-42, Routledge Language Family Series, London, Routledge, 2005,ISBN 0-7007-1286-0
• Aziz, Z.; Amery, R. (2016)."A survey of the status of the local languages of Pulau Simeulue and Pulau Banyak and their use within the community".http://eeic.unsyiah.ac.id/proceedings/index.php/eeic/article/view/95. Syiah Kuala University.{{cite journal}}:External link in|journal= (help)
• Candrasari, Ratri; Harinawati; Fasya, Teuku Kemal (2022-03-24)."Sigulai: One of Minority Language in Simeulue Island".Proceedings of the 2nd International Conference on Social Science, Political Science, and Humanities (ICoSPOLHUM 2021). Vol. 648. Atlantis Press. pp. 6–9.doi:10.2991/assehr.k.220302.002.ISBN 978-94-6239-552-7.
• Nothofer, Bernd,The Barrier Island Languages in the Austronesian Language Family, Focal II: Papers From the Fourth International Conference on Austronesian Linguistics, pp. 87-109, Pacific Linguistics, Series C 94, Canberra, Research School of Pacific and Asian Studies, The Australian National University, 1986.

• Northwest Sumatra–Barrier Islands languages
• Languages of Indonesia
• Languages of Aceh

• Language articles citing Ethnologue 16
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• Language articles with 'no date' set
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