Peru is one of the most biodiverse countries in the world. Its complex topography with Pacific coastal desert, high Andes, and Amazon basin underlies its exceptional species richness. Knowledge of Peru's beetle fauna is poorly known. Based on a literature review, institutional records, and fieldwork, this contribution reviews the fauna of three cerambycoid families, Cerambycidae, Disteniidae, and Vesperidae, recorded from Peru. The checklist presents 6 subfamilies, 60 tribes, 411 genera, and 869 species and subspecies for Peru. Type localities and known host plant records are also provided and pest species in Peru are briefly noted. This is the first paper in a series, Beetles of Peru. Many more new species await discovery and description as fieldwork continues in Peru.