Nicholas Muellner is an American photographer, writer and curator. He is best known for his photobooks The Amnesia Pavilions and In Most Tides an Island. The Amnesia Pavilions was named one of Time magazine's best photobooks of 2011, and In Most Tides an Island was shortlisted for the Paris Photo–Aperture Foundation's PhotoBook of the Year award in 2017. His works often combine images with text; treat themes related to repressed intimacy and human connection; and contain elements of autobiography, abstraction, photojournalism, and fiction. Many are set in the former Soviet Union and take gay men as their visual subjects.