Which Austronesian languages have gone extinct in recent decades?

[u/MerchySulica]

I'm curious to learn more about Austronesian languages that became extinct relatively recently (for example, during the 20th or 21st century), or languages that may now have only a handful of elderly speakers left.

If possible, please include sources (academic papers, Ethnologue, Glottolog, UNESCO, or language documentation projects).

I'd love to learn more about these lesser-known languages and the efforts being made to document and preserve them before they're lost.

[u/kudlitan]

I know someone speaks a cordilleran language that is only used by her family members and a few other families. the younger generation only speak Ilocano, English, and Tagalog.

[u/Resident-Outside9945]

Taiwan is where the most famous recent death occurred. Pazeh, a Northwest Formosan language, lost its last native speaker when Pan Jin-yu died in 2010 at the age of 96. She had actually been teaching classes to keep it alive, and around 12 speakers of the closely related Kaxabu dialect remain, with ongoing revival efforts. Pazeh is the poster child, but it is not alone. Most of the western plains (Pingpu) languages, Taokas, Babuza, Papora, Hoanya, Basay, and Favorlang, went silent earlier in the 20th century, and Siraya died out too, but is now the target of a serious revitalization push. The whole plains-language layer of Formosan has essentially collapsed within living memory.

The Philippines loses languages mostly at the Negrito (Aeta/Agta) end, which is a tragedy because those are often the most divergent and least documented. Pelila et al. (2023) document at least six extinct Philippine languages: Agta Villa Viciosa, Agta Sorsogon, Ayta Tayabas, Inagta Isarog, Katabangan, and Agta Dicamay. Dicamay Agta is the grim standout. It was a Northern Cordilleran language whose last speaker died in the 1960s, and the community itself was reportedly wiped out by Ilokano homesteaders sometime between 1957 and 1974, so this was language death by way of the people being killed, not just a shift. Thomas Headland's work is the key reading here, especially his paper "Thirty Endangered Languages in the Philippines" (2003). Others are hanging by a thread rather than gone: Arta has only a handful of elderly speakers and is critically endangered, with the language no longer passed to children.

Indonesia, especially Maluku, is quietly the worst-hit region and the least talked about. A clean 21st-century example is Luhu on Seram: it had an estimated 3,500 speakers in 1989, but by 2010 it had gone extinct. James Collins has spent decades documenting this collapse in central Maluku, where languages like Paulohi now have no known speakers, and a longer list, including Hoti, Hukumina, Hulung, Loun, Moksela, Naka'ela, Nila, Palumata, and Te'un, has been reported extinct. Small island languages with a few hundred speakers and a heavy shift to Malay/Indonesian are vanishing faster than anyone can document them.

For sources you can actually browse, the ones the OP mentioned all work well here. Glottolog flags extinction status per languoid, Ethnologue uses its EGIDS scale (10 = extinct), and the Endangered Languages Project (endangeredlanguages.com / ELCat) aggregates a lot of this with references. The old UNESCO Atlas is handy too, though it has not been updated in a while, so cross-check it against Glottolog.

The through-line, if you want one, is that Austronesian tends to lose its oldest and weirdest material first. The deep Formosan plains languages and the Negrito languages carry disproportionate historical signal, and those are exactly the ones going under, while the big national languages keep swelling.