Andrew Green hails from Stamford, Lincolnshire and was brought up in South Yorkshire. He came to Wales in 1973 to train as an academic librarian, learning Welsh soon afterwards. He has worked at the university libraries of Aberystwyth, Cardiff, Sheffield and Swansea, where he was Director of Information and Library Services.
In 1998 he was appointed the ninth Librarian of the National Library of Wales before retiring in March 2013. During his period there he introduced a number of innovative schemes, particularly in the digital field.
He played an important part in the development of the Coleg Cymraeg Cenedlaethol. From 2003 to 2007 he chaired a steering group set up by the Higher Education Funding Council to develop a Welsh-medium higher education strategy. Part of that strategy was the introduction of a research scholarship scheme under the auspices of the Centre for Welsh-medium higher education. The scheme was inherited by the Coleg Cymraeg, when it was established in 2011 and over 100 students have now secured doctorates through the scheme. Andrew Green chaired adjudication panels for the Coleg’s Scholarships scheme and staffing scheme for nearly a decade.
In 2013 he became a member of the board of Directors and served as chair from 2014 until 2017.