Leo Leuppi (1893–1972) was a Swiss painter, graphic artist, sculptor, and he was a representative of the Zürcher Schule der Konkreten.
In 1934 he founded the Groupe Suisse Abstraction et Surréalisme to help the modern art movements break through to cultural institutions.
In 1936 Leuppi was presented progressive Swiss artists to the wider public for the first time with the exhibition Zeitprobleme in der Schweizer Malerei und Plastik.
From 1959 to 1960 Leuppi taught experimental design in the Fashion Department at the School of Applied Arts in Zurich.
Leuppi is also well known for his public artworks such as the iron sculpture on the façade of the Migros building in Thun (1955), the wall mosaic at Schulhaus Kolbenacker in Zürich (1955–57) and the mural in the entrance hall of Alterssiedlung Gsteigstrasse in Höngg (1956–57).