Barbara Cannon is a British-Swedish biochemist, physiologist and an academic. She is an emeritus professor at Stockholm University as well as the chairman of the scientific advisory board at The Helmholtz Centre. She is also a consultant at Combigene.
Cannon is most known for her work on mammalian thermogenesis, primarily focusing on the function of brown adipose tissue. She is the recipient of the 2014 King's Medal from the Order of the Seraphims, Sweden.
Cannon is a Fellow of the Royal Swedish Academy of Sciences.