This study aimed to identify group norms present in sport teams for practices, competition, social situations, and the off-season. Participants (n = 87 males, n = 53 females) were asked to list behaviors prescribed (i.e., expected) or proscribed (i.e., not appropriate) for each of the four situations. Results showed that a norm associated with productivity was the most frequently cited for competitions (16.3%), practice (22.3%), and the off-season (60.1%). Many of the other frequently cited norms indirectly reflected on productivity—punctuality (23.6 and 8.9% for practices and competitions, respectively), attendance (13.6 and 3.0%, respectively), and preparedness (3.3 and 7.1%, respectively). An overwhelming majority of the other norms cited were related to group maintenance (i.e., in the off-season, maintain contact, 8.7%; in social situations, attend functions. 16.5%; and respect teammates, 16.5%). Results are discussed in terms of their relevance to sport team dynamics.