Padmanabha Pillai Gopinathan Nair is an Indian social worker, Gandhian, independence activist and the chairman of Mahatma Gandhi National Memorial Trust, popularly known as Gandhi Smarak Nidhi, a trust managed by the Government of India.
He participated in the Quit India movement of 1942 and worked alongside Vinoba Bhave to promote Bhoodan and Gramdan movements.
He is the initiator of the camp movement, a student program, as a part of the Construction Movement of Mahatma Gandhi.
He is a recipient of the Jamnalal Bajaj Award, among other honors.
The Government of India awarded him the fourth highest civilian honour of the Padma Shri, in 2016, for his contributions to society.