We report the results of an interview-based study of the qualities that people with physical and sensory disabilities use to describe effective nondisabled allies. Participants (n = 16) were asked to describe a nondisabled person in their life who understood and cared about the concerns of people with disabilities. A thematic analysis of their responses suggested that they appreciated nondisabled people who offered appropriate help, were trustworthy in their understanding of disability identity, made personal connections, advocated and acted against ableism, were willing to learn, and communicated effectively. Consistent with research about White allies to people of color, participants emphasized both political and social dimensions of being an ally.Psychological research on efforts to oppose discrimination or dismantle systems of oppression has, among other foci, attended to the behaviors and qualities of activists (e.g., Curtin & McGarty, 2016;Duncan & Stewart, 2007) and allies (e.g., Brown, 2015). Allies are typically described as members of dominant groups who are committed to and work on behalf of the liberation of a nondominant group (e.g.,