The purpose of the current study was to test a conceptual model of the mediated and moderated associations among shyness, coping strategies, and socioemotional functioning in middle childhood. Participants were 358 children (177 boys) aged 9-13 years (M = 10.16 years, SD = 0.95). Children completed self-report assessments of shyness, coping style in response to a social stressor, internalizing problems, and peer difficulties. Among the results, shyness was positively associated with internalizing symptoms and negatively related to perceptions of peer difficulties. However, both of these associations were partially mediated by internalizing coping styles. Moreover, problem-solving coping moderated these mediated pathways: among children who reported higher levels of problem-solving coping, the associations between internalizing coping and outcomes were attenuated. Several gender differences also emerged, suggesting that problem-solving coping may be particularly useful for shy boys. Results are discussed in terms of the complex but potentially critical role of coping in shy children's socioemotional functioning. (Contains 3 figures and 5 tables.)