Harminder Singh Dua (born in Jalandhar, Punjab) is an Indian-British medical doctor and researcher (with MBBS, DO, DO (Lond), MS, MNAMS, FRCS, FRCOphth, FEBO, MD, PhD). He is the chair and professor of ophthalmology at University of Nottingham and is the head of the Division of Ophthalmology and Visual Sciences. Prior, he was associate professor at the Thomas Jefferson University, Philadelphia, USA when he was invited to chair in Nottingham in April 1994. He earlier did his Graduation in Medicine from Government Medical College and Hospital,Nagpur.
Dua is also the co-editor in chief with Arun Singh, of the British Journal of Ophthalmology. He was president of EuCornea, the European society of Cornea and Ocular surface disease specialists. He is also president of the EVERf (European Association for Vision and Eye Research Foundation) and past president of the association itself. He was elected to the chair of Academia Ophthalmologica Internationalis and invited to join as member of the American Ophthalmological Society by thesis. In March 2011 he was elected president of the Royal College of Ophthalmologists, UK commencing his duties on 25 May 2011. He has over 200 research publications, 20 published letters, and 14 book chapters to his credit.
In a 2013 paper, Dua and others at the University of Nottingham reported discovery of a previously unknown layer of the human cornea measuring just 15 micrometres thick between the corneal stroma and Descemet's membrane. They refer to the reported layer as Dua's layer.