The Hugo Obermaier-Gesellschaft für Erforschung des Eiszeitalters und der Steinzeit e.V. (Hugo Obermaier Society for Quaternary Research and Archaeology of the Stone Age) is a non-profit association founded in 1951 and dedicated to the archaeology of the Stone Age, especially the cultures of the Palaeolithic and Mesolithic. The society bears the name in honour of Hugo Obermaier (1877-1946), a German prehistorian who was one of the first European Stone Age researchers in the first half of the 20th century.