This review aimed to synthesize the available literature regarding the psychosocial well-being of children and adolescents with coeliac disease (CD). Research on psychosocial well-being outcomes in children and adolescents with CD under the age of 18 were identified through a systematic search in the PsychInfo, Medline, Embase, and Cumulative Index to Nursing and Allied Health Literature (CINAHL) databases in July 2021. Outcomes, including health-related quality of life (HRQOL), psychological adjustment, mental health, and social functioning were examined. Changes in outcomes over time and the geographic representation of the included studies were also analyzed. A total of 43 studies were included. Mixed results were found in the domain of HRQOL and mental health. Both challenges with psychological adjustment and adaptive coping strategies were identified. Social functioning was found to be an area of difficulty for children and adolescents with CD. However, there was high heterogeneity in methodology and participant characteristics between studies. This review concluded there were mixed findings regarding the HRQOL and mental health of young people with CD. However, CD and the gluten-free diet initiates a need for psychological adjustment and impacts on social functioning. The review highlights the need for the integration of physical and psychosocial care, and further research to determine the most appropriate screening measures, and the most efficacious psychological interventions for this group. Future research should continue examining changes in psychosocial outcomes over time given the increase in the availability of gluten-free foods and changes in food labeling policies.