Alfredo Wiechers Pieretti was a Puerto Rican architect from Ponce, Puerto Rico. He was an expositor of the Neoclassicism and Art Nouveau architectural styles, doing most of his work in his hometown of Ponce. Today, Alfredo Wiechers' city residence, located in the Ponce Historic Zone and which he designed himself, is a museum, the Museo de la Arquitectura Ponceña. After enriching his hometown city with some of the most architecturally exquisite buildings, he moved to Spain arguing political persecution by the authorities in the Island.