Greg Leigh is Director of NextSense Institute (a centre for research and professional education operated by NextSense in affilation with Macquarire University) and conjointly Professor of Education and Disability Studies in Macquarie School of Education. He holds degrees in Special Education from Griffith University (BEd); Speech and Hearing Science (MSc) from Washington University (Central Institute for the Deaf) in the USA; and Psychology and Special Education Special Education (PhD) from Monash University. In 2001 he was made a Fellow of the Australian College of Educators and in 2014 he was invested as an Officer in the Order of Australia (AO) “for distinguished service to the deaf and hard of hearing community, particularly children, through education, research, public policy development and specialist services”.

Professor Leigh held a variety of positions in the education of deaf children in Queensland before entering academia. He was co-ordinator of the program in education of the deaf at Deakin University from 1987 until taking up the position of Senior Lecturer and foundation Head of RIDBC Renwick Centre (now NextSense Institute) in 1993. In 2003 he was International Visiting Scholar at the National Technical Institute for the Deaf (Rochester Institute of Technology), New York. As Director of NextSense Institute, he is a member of the Senior Leadership Team of NextSense.

Professor Leigh is a member of the Editorial Boards of The Journal of Deaf Studies and Deaf Education and Phonetics and Speech Sciences and was formerly a member of the Key Scientists Committee of the Hearing Cooperative Research Centre. He has served on several Australian Government consultative committees including the New South Wales Ministerial Standing Committee on Hearing and the National Neonatal Hearing Screening Working Party. He is currently Chairman of the Australasian Newborn Hearing Screening Committee. He is a former National President of the Education Commission for the World Congress of the World Federation of the Deaf and Chair of the International Steering Committees of both the Asia-Pacific Congress on Deafness (APCD) and the International Congress on Education of the Deaf (ICED).