Drawing on identity development theory, the connection between engagement in sport and identity status was examined. First-year undergraduates (n = 116 sport-involved youth; 67% women; mean age = 18.58 yrs) completed measures of interpersonal and ideological identity status (achievement, moratorium, diffusion, foreclosure), along with behavioral (breadth, intensity) and psychological (e.g., enjoyment, competence) indicators of sport engagement. Using structural equation modeling, we examined the relation between latent sport engagement and identity status in interpersonal and ideological domains. As hypothesized, latent sport engagement predicted greater interpersonal (but not ideological) identity achievement. Consistent with identity development theory, an additional specific relation was observed between lower breadth of sport involvement and higher interpersonal identity achievement. Results demonstrate the value of examining behavioral and psychological indicators of sport engagement jointly, and support a growing body of research linking sport and positive youth development. (Contains 1 table and 1 figure.)