A 1 SD increase in the polygenic score for childhood height, corresponding to an approximately 0.5 cm increase in pre‐pubertal stature, was associated with greater risk of MYCN‐amplified neuroblastoma in case‐control analyses (OR = 1.14, P = .047) and was suggestively associated when MYCN‐amplified patients were compared to MYCN‐unamplified patients in case‐case analyses (OR = 1.13, P = .083). Here, MYCN is linked to neuroblastoma.