Walter Niedermayr (born 27 February 1952) is an Italian photographer.
Niedermayr is mostly renowned for his photographs investigating the space as a reality occupied and shaped by people, questioning the ephemeral realms between representation and imagination. This body of work started in 1987 with the series Alpine Landschaften (Alpine Landscapes), and continued with Raumfolgen (Space Con / Sequences) (1991), Rohbauten (Shell Constructions) (1997) and Artefakte (Artifacts) (1992). His series Bildraum (Image-Space) (2001) focuses on architecture, space and environment. Between 2005 and 2008 he worked on the series Iran, while between 2009-2010 he has been working on The Aspen Series in Colorado. Between 2011 and 2014 Walter Niedermayr has been teaching Fine Art Photography at the Faculty of Design and Art, at the Free University of Bolzano/Bozen.