Ravindra Kumar Sinha is a Padma Shri awarded Indian biologist and environmentalist. Currently, he is Vice-Chancellor of Shri Mata Vaishno Devi University and formerly of Nalanda Open University. Previously he was the Head of the Department of Zoology at Patna University, and is a pioneer researcher and wildlife conservationist, famous for his efforts for the conservation of Gangetic Dolphins, he is popularly known as the "Dolphin Man of India".