Makasae (also known as Makassai, Macassai, Ma'asae, Makasai) is a Papuan language spoken by about 100,000 people in the eastern part of East Timor, in the districts of Baucau and Viqueque, just to the west of Fataluku.

It is the most widely spoken Papuan language west of New Guinea.

[2] Native consonant phonemes are shown in the chart below for the Ossu dialect.

Borrowed consonants are enclosed in parentheses.

Makasae has five vowel phonemes.