(Simon) John Sacher (born 9 June 1940) is a former business executive who has been involved in lobbying for business through the Industry and Parliament Trust and the Whitehall and Industry Group. He is a trustee of the International Centre for the Study of Radicalisation and Political Violence based at King's College London.
Sacher's CV from the International Centre for the Study of Radicalisation and Political Violence:
John Sacher CBE has a law degree from Oxford. He was for 30 years in Marks and Spencer, 25 years on the board. He was for 25 years on the Executive and a Governor of the Hebrew University of Jerusalem, being one of its Vice Presidents (Hon PhD). He is a Fellow and was on the Executive and Council of the Royal College of Music. He is President and a Fellow of the Royal Philatelic Society London, Vice President of the Industry and Parliament Trust, Chairman of Westminster Forum and was founder of the Whitehall and Industry Group. He chaired a Working Group for the OECD on the implications of the development of the Internet for governments and regulation (1998/99). 
- Westminster Forum, director
- Industry and Parliament Trust
- International Centre for the Study of Radicalisation and Political Violence, Trustee
- Jeremy and John Sacher Charitable Trust - Trustee
- British Friends of the Hebrew University president.