In United States politics, a Sister Souljah moment is a politician's public repudiation of an extremist person or group, statement, or position perceived to have some association with the politician or the politician's party.

It has been described as "a key moment when the candidate takes what at least appears to be a bold stand against certain extremes in their party" and as "a calculated denunciation of an extremist position or special interest group." Such an act of repudiation is designed to signal to centrist voters that the politician is not beholden to traditional, and sometimes unpopular, interest groups associated with the party,[citation needed] although such a repudiation runs the risk of alienating some of the politician's allies and the party's base voters. The term is named after the hip hop artist Sister Souljah.

The term originated in the 1992 presidential candidacy of Bill Clinton.[3] In a Washington Post interview published on May 13, 1992, the hip-hop MC, author, and political activist Sister Souljah was quoted as saying (in response to the question regarding black-on-white violence in the 1992 Los Angeles riots):