Interracial marriage bans, also known as anti-miscegenation laws, were laws passed by various states in the United States that prohibited interracial marriage between individuals of different races. These laws were primarily aimed at preventing Black and White individuals from marrying or engaging in sexual relationships.

The earliest anti-miscegenation laws can be traced back to the colonial era, when European settlers sought to maintain racial purity and social hierarchy. In the United States, such laws gained prominence during the 17th and 18th centuries, particularly in the Southern states where slavery was prevalent.

The most common form of anti-miscegenation laws prohibited marriage between White and Black individuals, though other racial combinations were also targeted in some states. These laws were rooted in White supremacy and the belief in the superiority of the White race.

Interracial marriage bans remained in effect in many states well into the 20th century. One of the most well-known cases regarding anti-miscegenation laws is Loving v. Virginia (1967), in which the Supreme Court ruled that laws banning interracial marriage were unconstitutional under the Fourteenth Amendment.

The overturning of anti-miscegenation laws was a significant victory for civil rights and marked a turning point in the fight against institutionalized racism. Despite this progress, attitudes towards interracial relationships have continued to evolve over time, and challenges in this area persist to this day.