Radhika Hettiarachchi (born 14 November 1977) is a Sri Lankan rugby union player and coach.
[3][4] He pursued his primary and secondary education at the Dharmaraja College in Kandy and joined Central Province XV rugby side just after leaving the school.
[3][5] He was a member of the Sri Lankan side which finished at sixth position in the men's rugby sevens competition at the 2002 Asian Games and was also part of the fifteen member Sri Lankan squad which competed in the men's rugby union competition at the 2002 Asian Games.
[6] Under his captaincy, Kandy Sports Club won the Caltex League Trophy as part of the Sri Lanka Rugby Championship in 2004.
[3][17] He joined Sri Lanka Air Force Sports Club during the latter part of his rugby playing career and later went onto become a coach after retiring from the game.