Arne Magnéli (6 December 1914 – 22 July 1996) was a Swedish chemist and crystallographer known for his work on the structure determination of transition metal oxides and alloys, including the study into their homologous series and nonstoichiometric phenomenon.

[1] Magnéli studied at Stockholm University and graduated with a Licentiate in 1941.

He moved to Uppsala University to conduct his graduate research under Gunnar Hägg, obtaining his PhD in 1950 for the study on tungsten bronzes.

[1] From his research into the structures of transition metal oxides, Magnéli developed the concept of recurrent dislocations,[2] which nowadays is known as crystallographic shear.

[5][6][7] Magnéli was awarded the Gregori Aminoff Prize of the Royal Swedish Academy of Sciences in 1989.