Lieutenant-Colonel Tatsuji Suga (菅辰次, Suga Tatsuji) (22 September 1885 – 16 September 1945) of the Imperial Japanese Army was the commander of all prisoner-of-war (POW) and civilian internment camps in Borneo, during World War II. A war criminal, Suga died by suicide five days after being taken prisoner by Australian forces in September 1945.