Andrew Green yw Llyfrgellydd Llyfrgell Genedlaethol Cymru ers 1998.  Treuliodd ei yrfa flaenorol mewn prifysgolion yng Nghymru a Lloegr, ac am sawl blwyddyn gwasanaethodd ar Gyngor Prifysgol Aberystwyth.  Yn 2011-12 roedd yn aelod o Grŵp Gorchwyl a Gorffen ar Ddulliau Addysgu Digidol yn yr Ystafell Ddosbarth, a argymhellodd sefydlu ‘Hwb’, y platfform dysgu i ysgolion a cholegau drwy Gymru gyfan.
Andrew Green has been the Librarian of the National Library of Wales since1998.  His previous career was spent in universities in Wales and England, and for many years he served on the Council of Aberystwyth University.  In 2011-12 he was a member of the Digital Classroom Teaching Task and Finish Group that recommended the establishment of 'Hwb', the all-Wales learning platform for schools and colleges.