The modern Gagauz alphabet is a 31-letter Latin-based alphabet modelled on the Turkish alphabet and Azerbaijani. It is used to write the Gagauz language.

During its existence, it has functioned on different graphic bases and has been repeatedly reformed. Previously, during Soviet rule, Gagauz's official script was Cyrillic, close to the Moldovan Cyrillic alphabet.

There are 3 stages in the history of Gagauz writing:

Gagauz was first written in Greek letters in the late 19th century. Orientalist Otto Blau claims that one of the first instances of written Gagauz was with plays of Euripides being translated into the Gagauz language and written with Greek letters.

The first specimens of Gagauz were collected by the Russian ethnographer Valentin Moshkov, who collected folklore texts from the Gagauz in Bessarabia, published in 1904. Until that time, up to the establishment of Gagauz as one of the official languages of the Soviet Union in 1957, the priest Mihail Ciachir was the only native speaker to attempt to write in Gagauz. His products were, for the most part, translations of religious texts but were also a history of the Gagauz people, which he first wrote in Romanian and subsequently translated into Gagauz. From 1909 to 1914, Ciachir wrote Gagauz in Cyrillic script but from 1932 to 1938, he wrote in Latin script.

The alphabet of these editions contained the letters:

a, â, ă, b, c, d, e, f, g, h, i, î, j, l, m, n, o, p, r, s, ş, t, ţ, u, v, ƶ, as well as di-, tri- and tetragraphs: aa, ââ, ee, ea, eaea, ii, ia, îa, ăă, io, ioio, iu, iuiu, oo, uu, ce, cea, ci, cia, cio, ciu, dj

Beginning in 1957, Cyrillic was used until 1993.