Datuk Seri R.S. Thanenthiran (born 4 July 1963) is a Malaysian politician and businessman. He is the founder and current president of the Malaysia Makkal Sakti Party (MMSP).
Thanenthiran was born on 4 July 1963 at Sungai Petani, Kedah. In 1990, he married Vaney Maniam and they have three children. Before entering politics Thanenthiran worked as a teacher.
Thanenthiran and the MMSP's main ideology is to develop the education level of Malaysian Indians. Thanenthiran has called on political leaders to adopt at least one Tamil school.