S. Kumarasamy generally referred as Kumarasamy Pillai (Tamil: குமரசாமிபிள்ளை), or Komachi (Tamil: கோமாட்சி), is a well-known politician and social worker in the Kumbakonam town. From his student life he actively engaged in several social works. He is an ardent follower of E. V. Ramasami and K. Kamaraj.