Busso Thoma (31 October 1899 – 23 January 1945) was a salesman.
Thoma was born in Sankt Blasien-Immeneich, Black Forest. In 1939, he became a consultant on the staff of the General Army Office (AHA), where, as a Major, he later became an accessory to the 20 July Plot to assassinate German dictator Adolf Hitler. On 14 September 1944, Thoma was arrested, on 17 January 1945, he was sentenced to death by the People's Court, and on 23 January 1945, he was hanged at Plötzensee Prison in Berlin.