Busa, or Bisã, is the Mande language of the former Borgu Emirate in northwestern Nigeria and northern Benin. It is called Busanci in Hausa, and has also been called Zugweya.

Busa language can be better known as Busa, but it is also known with the native name Bisã or with the Hausa name Busanci (also spelled Busanchi, Bussanci or Bussanchi). This is extremely similar to the Busa language of Papua New Guinea or the related Bissa language of Burkina Faso, Ghana, Togo and Ivory Coast.

The Mande branch consists of Soninke, Songhai, and Mandika branches that slowly evolved due to slavery.

One person or speaker is called a Busa and more persons/speakers are called Busano and the language of the Busano/Bussawa people is called Bisã.

The Busa people are one of two subgroups of the Bissa people, the other being the Boko people, who speak the Boko language. They are not a clan but a subgroup. They are related to the Bariba people, who speak the Bariba language, which is a Gur language. The Bissa people proper speak the Bissa language, which is closely related to Busa.

In Nigeria, Busa is spoken in Borgu LGA of Niger State, in Bagudo LGA of Kebbi State, and in Baruten LGA of Kwara state. A number of Busa have migrated to other parts of Nigeria, including Abuja. The Busa people are referred to as Bussawa in Hausa.

The Bokobaru dialect also known as Bokhobaru is spoken mainly in Kayama and Baruten LGA's, Kwara state.

In Benin, Busa is spoken in Alibori and Borgou departments. The Bokobaru dialect is not spoken in Benin.