This study evaluated the level of burden in pediatric and adolescent atopic dermatitis (AD) patients in Japan, the associated burden on caregivers/families, and whether this burden varied with age. Data were drawn from the Adelphi Pediatric AD Disease Specific Programme (DSP)™, a cross-sectional survey of physicians and their patients conducted in Japan between July and December 2022. Physicians reported patient demographics, clinical characteristics, disease burden, and current/previous therapies. Patients and/or caregivers reported perceived disease severity and impact of AD, including the Children's Dermatology Life Quality Index (CDLQI) and Dermatitis Family Impact questionnaire (DFI). Overall, 55 physicians provided data for 537 AD patients aged ≤17. Mean (SD) overall scores for CDLQI, POEM, and DFI were 9.3 (6.3), 8.3 (6.8), and 11.7 (7.2), respectively. Age was associated with higher patient and/or caregiver-reported CDLQI scores, which increased by 0.543 points per year of age (P = 0.01). Patients with severe disease reported a more significant impact on quality of life factors compared with mild patients (P < 0.001). Age was associated with higher caregiver-reported burden, with DFI scores increasing by 0.325 per year (P = 0.01). Physician-reported impact on caregivers showed that age was significantly associated with increased burden on sleep, daily activities, work, and mood (P < 0.05), with disease severity associated with impact across all factors (P < 0.01). Both increasing age and disease severity were associated with the increased impact of AD on patients and their caregivers. Disease control/modification through appropriate therapeutic intervention at a younger age may relieve the burden of pediatric AD on patients and their families.