The Allen Human Brain Atlas microarray dataset is an “all genes, all structures” gene expression survey of multiple adult control human brains. It contains genome-wide microarray profiles with over 62,000 gene probes per sample, collected from roughly 500 anatomically distributed samples per hemisphere spanning cerebrum, cerebellum, and brainstem. Expression measurements are mapped to brain anatomy using histology and registered into a unified 3D anatomical framework based on MRI, enabling spatial analysis across structures. The dataset supports gene-centric searches, browsing by functional and disease-related categories, and correlation analyses to identify genes with similar spatial expression patterns for neuroanatomical and neurogenomic research.