This paper reports on the distribution by socioeconomic status (SES) of injuries from sport and physical activities for each gender using data from a national sample of adult Canadians. The results show weak positive relationships between SES (various measures) and sport injury before controls for both genders, and that men are more likely to experience sports injuries than women. Workplace physical activity is negatively related to SES and negatively related to sport injury. Also, duration and intensity of sport and physical activities are positively related to SES and positively related to sport injuries. The effects of these intervening variables help account for the positive relationships of SES and sport injuries.