On 14 November 2005 Sri Lanka awarded Clarke its highest civilian award, the Sri Lankabhimanya (The Pride of Sri Lanka), for his contributions to science and technology and his commitment to his adopted country.
Am 14. November 2005 hat ihm Sri Lanka den höchsten zivilen Orden, den Sri Lankabhimanya (Der Stolz Sri Lankas) verliehen, in Anerkennung für seinen Beitrag zur Forschung und Technologie und dem Bekenntnis zu seiner Wahlheimat.