The purpose of the study was to determine athletes’perceptions of the sources of role ambiguity in interactive sport teams. Athletes (N = 151; 97 females and 54 males) were asked to identify why ambiguity might exist in relation to the scope of their role responsibilities, the behaviors necessary to fulfill those responsibilities, the evaluation of their role performance, and the consequences of not successfully fulfilling their role responsibilities. Results revealed an extensive set of possible sources for each dimension of role ambiguity that emerged from the responses that included factors associated with the role sender (e.g., coach), the focal person (e.g., the athlete), and the situation. The types and frequency of factors differed among the various dimensions of ambiguity thereby lending support to the necessity of considering role ambiguity in sport as a multidimensional construct. The relevance of the results to sport and future intervention research is discussed.