Ole Holger Petersen (born 3 March 1943) is a Danish-born research professor at Cardiff University where he studies physiology, especially calcium signalling and the pancreas.
[1] He was born in 1943 in Copenhagen, the first son of Joergen Petersen, an officer in the Danish navy, and Elisabeth née Klein, a pianist.
Prior to this he was Symers Professor of Physiology at the University of Dundee, and then George Holt Professor of Physiology at the University of Liverpool.
[2] He was elected a Fellow of the Royal Society (FRS) in 2000 "for his major contributions to the understanding of the cell physiology of calcium signalling",[3] and appointed a Commander of the Order of the British Empire (CBE) in the 2008 New Year Honours, "for services to Science".
[4] Petersen was elected a Fellow of the Learned Society of Wales in 2011.