Sivarasa s/o Rasiah (Tamil: ??????? ??????, romanized: Civaraca racaiya; born 8 December 1956), or also known as R.Sivarasa is a prominent Malaysian politician, lawyer and human rights activist of Ceylonese/Sri Lankan descent.
He is co-founder of Suara Rakyat Malaysia or SUARAM, a human rights NGO and former vice-president of the Parti Keadilan Rakyat (PKR) or People's Justice Party.
Sivarasa is the incumbent Member of Parliament for Sungai Buloh (constituency created from Subang in 2018 redelineation), Selangor.