An updated checklist and key to the Peruvian species of Brunellia (Brunelliaceae) is presented based on georeferenced herbarium specimens from Peruvian herbaria, own field collections and online sources. Thirteen Brunellia species are documented as native to Peru, including nine endemic species. Compared to previous studies the average number of Brunellia spp. per Andean department doubles from two to more than four species. Our data indicate a center of species richness and endemism in northern Peru, namely the Amotape-Huancabamba Zone (AHZ). Furthermore, distribution maps for all species are presented. Brunellia ovalifolia is reported as a new record for Peru. Another species, B. lobinii Böhnert & Weigend sp. nov., from Departamento de Lambayeque, Provincia de Ferreñafe, near the town of Kañaris, is here described as new to science. Additionally, some taxonomic uncertainties are discussed.