Background Hope is negatively associated with parental psychosocial distress and psychological maladjustment as well as an important aspect of emotional well-being and coping for adults with cancer and their caregivers. Yet, little is known about hope experiences of parents of children with cancer. Objective The aim of this study was to comprehensively describe hope experiences in parents of children with cancer using a systematic mixed-studies review. Intervention/Methods Psych INFO, PubMed, Academic Search Premier, and CINAHL databases were used to retrieve articles published in English between January 2005 and October 2019. Using the systematic mixed-studies review convergent design, qualitative and quantitative data were collected and extracted followed by qualitative synthesis. Seventeen articles met the inclusion criteria. Exclusion criteria were systematic reviews, nonresearch articles, case reports, and abstracts. Results Hope is a fundamental source of strength and inner guidance for parents. Findings suggest that hope is negatively correlated with parental psychological distress symptoms and coping dysfunctions. Religiosity, spirituality, and adequate provider-parent communication may strengthen hope in parents. Conclusion Parental hope may help minimize psychological distress and maladjustment after a child’s cancer diagnosis. Open communication channels between providers and parents are critical in preserving hope. An understanding of religiosity, spirituality, optimism, and sociodemographic variables may inform parental psychosocial interventions. Implications for Practice Early identification of parents with psychological distress is critical as they may struggle more in the absence of hope. Targeted psychosocial interventions may help parents of children with cancer cope better. Ongoing assessments of spiritual needs may be important in sustaining hope.