Mongol, also known as Mwakai, is a Keram language of Papua New Guinea. Despite the name, it is not related to Mongolian, which is spoken in East Asia.

It is spoken in Mongol village (4°15′44″S 143°55′03″E / 4.262293°S 143.917638°E / -4.262293; 143.917638 (Mongol)), Keram Rural LLG, East Sepik Province.

Mwakai has 12 consonants and six vowels, shown in the tables below. This section follows Barlow (2020).

Mwakai consonants

		Labial	Coronal	Palatal	Velar
Obstruent	voiceless	/p/		/s/	/k/
	voiced	/ᵐb/	/ⁿd/	/ⁿd͡ʒ/	/ᵑɡ/
Nasal	voiced	/m/	/n/
Sonorant	voiced	/w/	/r/	/j/

The sound [t] only occurs in borrowings, with earlier */t/ having historically become /r/; this is belied by the realisation of word-final /r/ as [t~r~l]. /s/ patterns as a palatal consonant, with the optional allophone [ʃ]; there is some interplay between the sounds /s/ and /ⁿd͡ʒ/ in casual speech, with the contrast sometimes being neutralised in favour or either realisation. [ɲ] is a marginal phone which appears in borrowings and occasional as a realisation of /n/ before /i/. /r/ varies between [r ~ ɾ ~ l] and /p/ is occasionally realised as [ɸ].

/w/ and /j/ have a limited distribution, appearing mostly word-initially or -finally, and only rarely intervocalically. Some instances of /j/ and most instances of /w/ may be merely epenthetic, suggesting that Mwakai is in the process of losing its glide phonemes.

Mwakai vowels

	Front	Central	Back
Close	/i/		/u/
Mid	/e/	/ə/	/o/
Open		/a/

/i u e/ are rarely realised as their cardinal qualities and may approach [ɨ~ɪ ɨ~ʊ ɛ~ə] especially when unstressed.

• Barlow, Russell (2020). Notes on Mwakai, East Sepik Province, Papua New Guinea. Language and Linguistics in Melanesia 38: 37-99. ISSN 0023-1959