The Nilotic languages are spoken by the Luo peoples.
The Luo ( also spelled Lwo ) are several ethnically and linguistically related Nilotic ethnic groups in Africa that inhabit an area ranging from South Sudan and Ethiopia , through northern Uganda and eastern Congo ( DRC ) , into western Kenya , and the Mara Region of Tanzania . The Nilotic languages are a group of Eastern Sudanic languages spoken across a wide area between South Sudan and Tanzania by the Nilotic peoples , who traditionally practice cattle-herding . Nilotic peoples are peoples indigenous to the Nile Valley who speak Nilotic languages ; this is a large sub-group of the Nilo-Saharan languages spoken in South Sudan , Uganda , Kenya , and northern Tanzania . Among these are the Luo , Sara , Maasai , Kalenjin , Dinka , Nuer , Shilluk , Ateker , and the Maa-speaking peoples , each of which is a cluster of several ethnic groups .