Frame disputes refer to differences of opinion or preference regarding claims associated with framing activities that social movement actors fashion. Frame disputes are a pervasive dynamic within social movements, one of several contested discursive processes within the movement arena. The concept derives from Erving Goffman's observations in Frame Analysis that interpretations of what's going on in a particular circumstance are subject to disagreement. On such occasions “reality” must be negotiated. In the context of social movements, frame disputes erupt within a movement organization (intra -organizational dispute) and/or between representatives of two or more SMOs within a social movement (inter organizational dispute). Frame disputes in the wider political arena, such as those that often arise between social movements and their opponents (e.g. countermovements, targets of change, media, etc.), have been referred to as “framing contests.” The focus of this entry is on interpretive and discursive disagreements that occur within a social movement.