Shanmugarajan is an Indian actor who appears in Tamil films. Shanmugarajan was born on 4th October, 1974, to father S. Muniyasamy and mother M. Rajeswari, in Ramanathapuram, Tamil Nadu, India.
Shanmugarajan is an alumnus of The American College in Madurai and National School of Drama. He made his debut with Virumaandi (2004) and became popular for his role as police officer named Peikkaaman. He played similar roles in ' (2007) and Thee Nagar (2007).