Lower Chulym is a Turkic dialect of Chulym formerly spoken by the Chulyms on the lower course of the Chulym river and its tributaries, the Kiya and the Yaya in Russia. It went extinct in 2011.

When the Russian researcher Dulzon began to study Lower Chulym in the 1940s, the Lower Chulym Turks numbered no more than 250. In the 1990s, their Russification was nearly complete. The language is today, with no doubt, extinct.^[2]

Lower Chulym is classified in the Siberian group of Turkic languages. Russian linguists consider it to be a dialect of Chulym, together with Middle Chulym. However, this question is still open.

It is sometimes classed with Northern Altai and the Kondoma dialect of Shor in a Northern Altai group. It also bears similarities with the Tom dialect of Siberian Tatar.

A third Turkic variety, Küärik, is spoken in the Chulym basin, north of Mariinsk. It is known from the work of Radloff, which come from around 1900. This dialect, which had disappeared by the time of Dulzon in 1940, was considered by Radloff to be identical to Lower Chulym.^[3]

Key: K - Küärik, LC - Lower Chulym

• Бирюкович, P. M. (1997). Чулымско-тюpкский язык. In Institut âzykoznaniâ (ed.). Tûrkskie âzyki Тюркские языки. Âzyki mira Языки мира (in Russian). Moskva: Izdatel'stvo Indrik. pp. 491–497. ISBN 978-5-85759-061-4.

• Pomorska, Marzanna (2004). Middle Tchulym Noun Formation. Studia Turcologica Cracoviensia. Księgarnia Akademicka. p. 256. ISBN 9788371887840.

• Ethnologue: Languages of the World (unknown ed.). SIL International.^{[This citation is dated, and should be substituted with a specific edition of Ethnologue]}