Housing segregation in Black history refers to the systematic discrimination and exclusion of African Americans from certain neighborhoods and communities based on their race. This practice was widespread in the United States, particularly in the 20th century, and was enforced through a combination of laws, policies, and social norms known as "redlining."

Redlining was a practice used by banks, real estate agents, and government agencies to mark certain neighborhoods as high risk for investment based on their racial demographics. Areas with predominantly Black populations were deemed "redlined" and denied access to loans, mortgages, and other financial services, effectively trapping residents in a cycle of poverty and limited housing options.

The impact of housing segregation on African American communities was profound, leading to overcrowding, substandard housing conditions, and limited access to economic opportunities and quality education. This segregation also perpetuated racial inequality and reinforced systemic racism in housing and other areas of society.

Efforts to combat housing segregation have been ongoing, including the passage of the Fair Housing Act in 1968, which prohibits discrimination in housing on the basis of race, color, religion, sex, or national origin. However, the legacy of housing segregation continues to shape patterns of residential segregation and disparities in wealth and opportunity for African Americans in the United States today.