Marcel Janco (, , common rendition of the Romanian name
Marcel Hermann Iancu , last name also
Ianco,
Janko or
Jancu; May 24, 1895 – April 21, 1984) was a
Romanian and
Israeli visual artist, architect and art theorist. He was the co-inventor of
Dadaism and a leading exponent of
Constructivism in
Eastern Europe. In the 1910s, he co-edited, with
Ion Vinea and
Tristan Tzara, the Romanian art magazine
Simbolul. Janco was a practitioner of
Art Nouveau,
Futurism and
Expressionism before contributing his painting and stage design to Tzara's literary Dadaism. He parted with Dada in 1919, when he and painter
Hans Arp founded a Constructivist circle,
Das Neue Leben.