- Language: Sighu
- Alternate names: Lesighu, Mississiou
- Language code: sxe
- Language family: Niger-Congo, Atlantic-Congo, Volta-Congo, Benue-Congo, Bantoid, Southern, Narrow Bantu, Northwest, B, Kele (B.202) (SIL classification)
- Number of speakers: Several hundred
- Vulnerability: Endangered
- Script: Unwritten.
Threatened and undocumented (2000 B. Connell).
Sighu is spoken in Gabon, Africa.