Alexis Donnet (1782 - 1867), aka Aleixo, was a French map geographical engineer, architect, map publisher, and cartographer active in France in the first half of the 19th century. Donnet was born in Lyon. During the First Empire he was an ingénieur-géographe attached to Cadastre de la France. His work is scarce on the market, but well represented in official collections within France, particularly the Bibliothèque Nationale de France (BnF). In addition to cartographic work, he published an architectural study of the theaters of Paris (1821).