Matthias Geiger (b. 1964) is a photographer and educator whose artistic practice explores the expressive possibilities of photographic imagery. Geiger’s work has been presented in exhibitions in the United States and Europe, including B Hotel at MoMA PS1 in New York (2001–02), a group exhibition at von Lintel Gallery in New York (2005), and Tide, a solo exhibition at Kleinschmidt Fine Photographs in Wiesbaden, Germany (2009). Geiger was a faculty member of UC Davis’ Department of Art, contributing to the university's tradition of photographic experimentation and arts education.