Ko Htwe (Burmese: ကိုထွေး, pronounced [kò tʰwé]; 1929 – 19 July 1947) was a Burmese security officer who was killed in the assassination of Burmese pre-independence government leaders on 19 July 1947.^[1][2][3][4] He was a bodyguard of U Razak, the Minister for Ministry of Education and National Planning. Ko Htwe was the lone non-office holder who was killed. Seven cabinet ministers (including Prime Minister Aung San) and a deputy minister were killed in their meeting room at the Secretariat compound in downtown Yangon.^[5] 19 July is commemorated each year as the Martyrs' Day in Myanmar.^{[6][7][8][9][10][11][12]}

Htwe was only 18 at his death. He was born to Ko Ko Lay, an officer at the Department of Agriculture and his wife Min Yi in Mandalay.^{[5][13][14][15]}