Gustav Arne Ölander (31 December 1902 in Stockholm – 13 May 1984 in Stockholm) was a Swedish chemist, known for his discovery of the shape-memory effect in metal alloys. He was the son of Gustaf Ölander and Hilda Ölander née Norrman. Ölander became an associate professor of physical chemistry at Stockholm University in 1929. He was a professor of theoretical chemistry and electrochemistry at the Royal Institute of Technology 1936–1943, in inorganic and physical chemistry at Stockholm University 1943–1960, and in physical chemistry at Stockholm University 1960–1968.