Lluís Clotet (Barcelona 1941) is a Spanish architect and university professor.
In 1964, he founded the Studio PER with architects Pep Bonet, Cristian Cirici and Oscar Tusquets. The latest work on several projects until 1983. In 1984, the partners with Ignacio Paricio gathers to allow architectural production. He is a founding partner of BD Barcelona Design, for which regularly designs furniture and objets