Major General Bengt (T:son) Trygvesson Liljestrand (26 February 1919 – 2 January 2000) was a Swedish Army officer. He served as Chief of Staff of the United Nations Truce Supervision Organization (UNTSO) from 1974 to 1975 and Force Commander of the Second United Nations Emergency Force (UNEF II) from 1975 to 1976.