General Saprang Kalayanamitr (Thai: สพรั่ง กัลยาณมิตร; RTGS: Sa-phrang Kanlayanamit, also known as Poei (Thai: เปย) or Big Poei (Thai: บิ๊กเปย), born 8 July 1948 in Lampang, Thailand) is a retired officer of the Royal Thai Army, Assistant Secretary-General of the Council for National Security, Commander of the junta's 14,000-man anti-protest force, chairman of the Board of Directors of Airports of Thailand (AoT), and also Chairman of the Boards of TOT and CAT Telecom, two major Thai state-owned telecommunication companies.