The Atwot (Reel) are a Nilotic ethnic group of South Sudan who live near Yirol in Eastern Lakes State. They comprise a majority of the population in the payam of Yirol West.
The Atwot people speak the Atwot language (Atwot: Thok Reel), which was first recognized as a separate language from Dinka by anthropologist John Burton in 1987. It is a Western Nilotic language of the Dinka-Nuer group, closely related to the Nuer language and more distantly to the Luo languages. SIL International estimate that the number of Atuot speakers is 50,000.
Atwot speakers distinguish two dialects to their language, Thok Reel Cieng Luai and Thok Reel Cieng Nhyam with Thok Reel Cieng Nhyam being the more lexically conservative of the two. Most Atwot are bilingual in Dinka and Atwot.
A distinctive feature of the language is its having of three contrastive vowel lengths.