Sengamedu Srinivasa Badrinath (24 February 1940 – 21 November 2023) was an Indian ophthalmologist who was the founder and chairman emeritus of Sankara Nethralaya, one of India's largest charitable eye hospitals.
Both of his parents died while he was still in his teens, and he completed his medical studies with the insurance money obtained following the death of his father.
Following his studies of Basic Sciences in Ophthalmology at the New York University Medical School, he did his residency in Ophthalmology at the Brooklyn Eye and Ear Infirmary, New York, and a fellowship with Charles Schepens at the Retina Service of the Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.
He returned to India in 1970, and for a period of six years worked at the Voluntary Health Services in Chennai as a consultant.
Sankara Nethralaya, a charitable not-for-profit eye hospital is a unit of the Medical Research Foundation.