Andreas Valentin (born 1952 in Rio de Janeiro) is a photographer, visual artist, researcher, and professor. He has worked intensively in documentary and artistic photography, as well as in experimental film and video. He has held solo exhibitions and participated in group shows in Brazil and around the world. He researches the history of photography and has engaged in extensive curatorial work. He studied and collaborated with Brazilian avant-garde artist
Hélio Oiticica. The films and photographs they created have been published in books and displayed at major institutions worldwide.