Roy W. Brown is a British-born engineer, humanist and human rights activist. He was president of the International Humanist and Ethical Union (IHEU) from 2003 to 2006 and was for a time its main representative at the United Nations, Geneva.
Roy Brown was born in London on 2 November 1947. He was educated at the Martin School, East Finchley and The Haberdashers' Aske's Boys' School, an Independent school in Elstree in Hertfordshire, and the University of London where he read Engineering. He trained as an engineer with ITT in London working on the development of electronic systems, and the UK Atomic Weapons Research Establishment at Orford Ness and Aldermaston where he was part of the team developing monitoring systems for the international Test Ban Treaty. After emigrating to Canada where he worked for four years with Canadian Marconi in Montreal on the design of airborne radar and navigation systems he returned to the UK as Chief Designer for Racal Research in Tewkesbury, pioneers in the field of Computer Aided Design.