Bisu or BISU may refer to:
- A festival celebrated in Tulu Nadu region in South-West Karnataka and North-West Kerala, India, also called Vishu in Kerala.
- Beijing International Studies University, abbreviated BISU, a university under the administration of the Beijing Municipal Government, located in Chaoyang District, Beijing, China
- Bes, also spelled Bisu, an Egyptian deity
- Bohol Island State University, a public university in the Philippines
- Kim Taek-Yong (b. 1989), known by the pseudonym Bisu, a professional StarCraft player from South Korea