Selim is an ethnic group of Sudan. They speak

Sudanese Arabic Sudanese Arabic, also referred to as the Sudanese dialect (), Colloquial Sudanese () or locally as Common Sudanese () refers to the various related varieties of Arabic spoken in Sudan as well as parts of Egypt, Eritrea, Ethiopia, and Chad. Sudan ...

. Most members of this ethnic groups are Muslims. The population of this ethnic group is at several 10,000.

References

Joshua Project
Ethnic groups in Sudan {{Sudan-ethno-group-stub