The Lily-White Movement was an anti-Black political movement within the Republican Party in the United States in the late 19th and early 20th centuries. It was a response to the political and socioeconomic gains made by African Americans following the Civil War and the Thirteenth Amendment to the Constitution, which eliminated slavery and involuntary servitude ("except as punishment for a crime").
During Reconstruction, Black leaders in the South gained influence in the Republican Party by organizing Black people as an important voting bloc via Union Leagues and the biracial Black-and-tan faction of the Republicans. Conservative Whites attempted to eliminate this influence and recover White voters who had defected to the Democratic Party. The Lily-White Movement proved successful throughout the South and was a key factor in the growth of the Republican Party in the region.