Kumarathurai Arunasalam (Tamil: அருணாசலம் குமராதுரை; May 25, 1939 - 22 January 2019) was the founder of Kumarapuram, a small village in Trincomalee District of Sri Lanka’s Eastern Province. He is younger brother of late Tamil United Liberation Front (TULF) Member of Parliament for Trincomalee District, A. Thangathurai.