Brian Leonard Eyre (29 November 1933 – 28 July 2014) was a British material scientist, Chief Executive of the United Kingdom Atomic Energy Authority (UKAEA)[1] and Professor at the University of Liverpool.

[2] His research investigated nuclear technology, including electron microscopy studies of radiation damage in metals and alloys.

[2][3][4][5] He played an important role in the privatisation of UKAEA to create AEA Technology.

[2] He was elected foreign associate member of the National Academy of Engineering of the United States in 2009 for his understanding of neutron irradiation-induced damage in materials and for developing technologies and policies for nuclear power in the United Kingdom.

[6] He was appointed Commander of the Order of the British Empire (CBE) in the 1993 New Year Honours.