The Lello Bookstore (Portuguese: Livraria Lello), also known as Livraria Lello & Irmão and Livraria Chardron, is a bookstore located in civil parish of Cedofeita, Santo Ildefonso, Sé, Miragaia, São Nicolau e Vitória, in the northern Portuguese municipality of Porto.

Along with Bertrand in Lisbon, it is one of the oldest bookstores in Portugal and frequently rated among the top bookstores in the world (placing third in lists by guidebook publisher Lonely Planet and The Guardian).