P. R. G. Mathur (12 October 1934 – 16 November 2022) was an Indian anthropologist noted for his studies on the indigenous communities in India in general and Kerala in particular.
He is also known for his efforts to bring the tribal community in Attappadi and Wayanad in Kerala to the mainstream of society by working among them.
While he was working in Anthropological Survey of India, he also found time to work for a PhD degree in Calcutta University under the supervision of Prof. Surajit Chandra Sinha, a well-known anthropologist and a former vice-chancellor, Visva-Bharati University, Santiniketan.
During the period 1973 to 1979, Mathur worked as a special officer for Tribal Research and Training Centre, Kozhikode established by Government of Kerala.
In 1979, he helped found the Ananthakrishna Iyer International Centre for Anthropological Studies (AICAS) in Palakkad and served as an executive committee member until 1992.