Julia Elizabeth King, Baroness Brown of Cambridge (born 11 July 1954[1]) is a British engineer and a crossbench member of the House of Lords, where she chairs the Select Committee on Science and Technology.

[9][8][1] King continued at Cambridge as a Rolls-Royce research fellow for 2 years before taking a post as a lecturer at the University of Nottingham from 1980 to 1987.

King has held a number of senior public appointments and works closely with Government on education and technology issues.

[16] She was a member of the Greater Birmingham and Solihull Local Enterprise Partnership,[17] the Engineering and Physical Sciences Research Council,[18] and the Board of Universities UK, chairing its Innovation and Growth Policy Network.

She has published over 160 papers on fatigue and fracture in structural materials and developments in aerospace and marine propulsion technology, and has been awarded the Grunfeld, John Collier, Lunar Society,[22] Constance Tipper,[23] Bengough and Kelvin medals as well as the Erna Hamburger Prize and the 2012 President's Prize of the Engineering Professors' Council.

[26] On 5 May 2010, she discussed the challenges and opportunities that surround low-carbon transport when she delivered the Institution of Chemical Engineers 6th John Collier memorial lecture.