Nilotic people or Nilotes, in its contemporary usage, refers to some ethnic groups mainly in South Sudan, Uganda, Kenya, and northern Tanzania, who speak Nilotic languages, a large sub-group of the Nilo-Saharan languages. These include the Kalenjin, Luo, Ateker, Dinka, Nuer, Shilluk and the Maa-speaking peoples – all which are clusters of several ethnic groups.

The terms Nilotic and Nilote were previously used as racial classifications, based on anthropological observations of their distinct body morphology. These perceptions were later widely discarded by 20th century social-scientists, but today they again find support in population genetics.

These terms are now foremost used to distinguish "Nilotic people" from their ethnic neighbours (mainly Bantu speaking people), based on ethnolinguistic affiliation. Etymologically, the terms Nilotic and Nilote (also spelled Nilot) derive from the Nile Valley, specifically the Upper Nile and its tributaries, where most Sudanese Nilo-Saharan-speaking people live.

The Kingdom of Kush or Kush was an ancient African state centered on the confluences of the Blue Nile, White Nile and River Atbara in what is now the Republic of Sudan.

Established after the Bronze Age collapse and the disintegration of the New Kingdom of Egypt, it was centered at Napata in its early phase. After king Kashta ("the Kushite") invaded Egypt in the 8th century BC, the Kushite kings ruled as Pharaohs of the Twenty-fifth dynasty of Egypt for a century, until they were expelled by Psamtik I in 656 BC.

During Classical Antiquity, the Kushite imperial capital was at Meroe. In early Greek geography, the Meroitic kingdom was known as Ethiopia. The Kushite kingdom with its capital at Meroe persisted until the 4th century AD, when it weakened and disintegrated due to internal rebellion. The Kushite capital was subsequently captured by the Beja Dynasty, who tried to revive the empire. The Kushite capital was eventually captured and destroyed by the kingdom of Axum. After the collapse of the Kushite empire several states emerged in its former territories, among them Nubia.

The term black people is used in some socially-based systems of racial classification for humans of a dark-skinned phenotype, relative to other racial groups represented in a particular social context. Different societies apply different criteria regarding who is classified as "black", and often social variables such as class and socio-economic status also play a role, so that relatively dark-skinned people can be classified as white if they fulfill other social criteria of "whiteness" and relatively light-skinned people can be classified as black if they fulfill the social criteria for "blackness" in a particular setting.

As a biological phenotype being "black" is often associated with the very dark skin colors of some people who are classified as "black". But, particularly in the United States, the racial or ethnic classification also refers to people with all possible kinds of skin pigmentation from the darkest through to the very lightest skin colors, including albinos, if they are believed by others to have African ancestry, or to exhibit cultural traits associated with being "African-American". As a result, in the United States the term "black people" is not an indicator of skin color but of socially based racial classification.