- Language: Reel
- Alternate names: Atuot, Atwot, Thok Cieng Reel, Thok Reel
- Language code: atu
- Language family: Nilo-Saharan, Eastern Sudanic, Nilotic, Western, Dinka-Nuer, Nuer (SIL classification)
- Number of speakers: 50,000
- Vulnerability: Vulnerable
- Script: Latin script.
Live among and are culturally Dinka; 100 km from the Nuer, but have common grazing grounds with them. Subtribes: Apak, Luac, Jilek, Jikey (Rorkec), Akot, and Kuek. Ethnonym: Atuot by the Dinka. Cieng Luai dialect spoken by Luac, Jilek, and Akot; Cieng Nhyam spoken by Kuek and Jikeyi.
Reel is spoken in Sudan, Africa.