Digby Jacks (16 May 1945 – 21 October 2011) was President of the UK's National Union of Students between 1971 and 1973 and was subsequently a trade union official for the Manufacturing, Science and Finance trade union.
A member of the Communist Party of Great Britain when elected NUS President, he was the second candidate from the left - in this case the Radical Student Alliance, succeeding Jack Straw, also elected on the RSA ticket, to win since the beginning of the Cold War: national student politics having previously been dominated by an anti-Communist alliance.
After his term as NUS president he wrote the book Student Politics and Higher Education (ISBN 0853153264), which examines the broad left's political strategy in student politics. Retiring as a regional officer for the Amicus trade union in 2005, he was a Labour councillor in the London Borough of Hounslow until 2006 and secretary of the lobbying group Alliance for Finance.
He died in October 2011. 
- Nelson, Robert (10 April 1971). "British student union picks Red chief". The Christian Science Monitor. Retrieved 28 May 2010.
- "Amicus gets amicable". The Guardian (London). 10 May 2003. Retrieved 28 May 2010.
- Sampson, Anthony (1973). The new anatomy of Britain. Stein and Day. p. 179. ISBN 978-0-8128-1583-2.
- "Student Politics and Higher Education". Marxism Today 19: 321. 1975. ISSN 0025-4118.
- Tan Parsons (14 April 2006). "Young and fearless ... | Education | guardian.co.uk". London: Guardian. Retrieved 2011-11-22.
- Steel, Peta (22 November 2011). "Digby Jacks, Student leader who took on Thatcher â and won". The Independent (London).