BackgroundQuality of life (QOL) is an important clinical endpoint in paediatric chronic conditions. How parent-proxy reports differ from child self-reported QOL in patients with anorectal malformation (ARM) and Hirschsprung's disease (HD) has not been well examined to date. This study evaluates agreement between parent-proxy and child-reported QOL scores in ARM and HD patients compared to healthy controls. MethodsWe recruited ARM and HD patients aged 5–17 years and their parents at four tertiary referral centres between December 2020 to February 2023 who had corrective surgery done >12 months prior. Healthy controls were age-matched and gender-matched. They completed the Pediatric Quality of Life Inventory™ (PedsQL™) Generic Core Scales and General Well-Being (GWB) Scale. The questionnaires were administered in parallel parent-proxy-report and child self-report formats. Appropriate statistical analysis was performed with p < 0.05 significance. Data are reported as median (interquartile range). Ethical approval was obtained. ResultsThere were 65 ARM, 54 HD and 83 controls. There were no significant differences between parent-reported scores and child-reported scores overall in the Total, Psychosocial Health and Physical Health components of Core Scales for ARM, HD and controls. However, parent-reported scores were significantly higher than child-reported scores overall in ARM, HD and controls in the GWB Scale. ConclusionOur findings show that parent-rated and child-rated overall QOL was similar in Core Scales for ARM, HD, and controls. However, parents overestimated child's overall GWB for ARM, HD and controls. This highlights the importance of capturing the perspectives of both parents and children to inform strategies to improve patient care. Level of EvidenceLevel III.