Ramachandran Nagaswamy (born 1930) is an Indian historian, archaeologist and epigraphist who is known for his work on temple inscriptions and art history of Tamil Nadu. He started the Chidambaram Natyanjali festival in 1980. Nagaswamy was awarded the "Kalaimamani" award by the Government of Tamil Nadu for his pathbreaking work on Sekkilar's Periyapuranam. He appeared as an Expert Witness in the London High Court, in the London Nataraja case.
- R. Nagaswamy (1980). Art and culture of Tamil Nadu. Sundeep Prakashan.
- Vidya Dehejia, Richard H. Davis, R. Nagaswamy, Karen Pechilis Prentiss (2002). The sensuous and the sacred: Chola bronzes from South India. American Federation of Arts. ISBN 0295982845, ISBN 978-0-295-98284-7.
- R. Nagaswamy (2003). Facets of South Indian Art and Architecture. Aryan Books International. ISBN 8173052441, ISBN 978-81-7305-244-6.
- R. Nagaswamy (October 10, 2003). "Democracy of a high standard — ancient example". The Hindu.
- R. Nagaswamy (2006). Art and religion of the Bhairavas. Tamil Arts Academy.
- R. Nagaswamy (2010). Monumental Legacy Series: Mahabalipuram. Oxford University Press India. ISBN 0198071272, ISBN 978-0-19-807127-3.
- "R. Nagaswamy". Tamil Arts Academy.
- "Call for professional approach to preservation of monuments". The Hindu. May 9, 2010.
- "The case of the peregrinating Nataraja". The Hindu. Apr 3, 2003.