Johannes Girardoni is an American-based sculptor and installation artist known for his series of Light Reactive Organic Sculpture, Re-Frequenced Sculpture and Exposed Icons. Girardoni’s work blurs the line between virtual and material content, and creates new realities at the intersection of light and material. His works have been widely shown at museums and galleries in the US, Europe, and Asia. In 2011, Girardoni's installation The (Dis)appearance of Everything was included in the 54th Venice Biennale, Italy. Selected other exhibitions include Personal Structures at the Ludwig Museum, Germany, 30 Years of Contemporary Art at the California Center for Contemporary Art and Creative Migration at The Austrian Cultural Forum, New York. Girardoni has been the subject of features and reviews both nationally, and internationally, including in The New York Times, The Wall Street Journal, ArtNews, Art in America, and Sculpture.

Girardoni (born Austria, 1967) grew up in Vienna. In 1982 his family moved to Southern California. Girardoni went on to study at Bowdoin College, ME and at the M.I.T Media Lab. Girardoni lived and worked in New York from 1989 to 2012. The artist is now based in Los Angeles.