| Tenure |
Incumbent |
Notes |
| Belgian Suzerainty |
| 1916 to 22 November 1916 |
Charles Tombeur, Military Governor |
|
| 22 November 1916 to May 1919 |
Justin Prudent François Marie Malfeyt, Royal Commissioner for Occupied East Africa |
|
| May 1919 to 20 October 1924 |
Alfred Frédéric Gérard Marzorati, Royal Commissioner for Occupied East Africa |
|
| November 1921 to July 1922 |
Pierre Ryckmans, acting Royal Commissioner for Occupied East Africa |
|
| League of Nations Mandated Territory of Ruanda-Urundi |
| 20 July 1922 to 20 October 1924 |
|
|
| 20 October 1924 to 1 March 1926 |
Alfred Frédéric Gérard Marzorati, Royal Commissioner for Ruanda-Urundi |
|
| Administrative union with Belgian Congo |
| 1 March 1926 to 28 August 1926 |
Alfred Frédéric Gérard Marzorati, Royal Commissioner for Ruanda-Urundi |
|
| 15 November 1925 to 13 December 1926 |
Pierre Ryckmans, acting Royal Commissioner for Ruanda-Urundi |
|
| 28 August 1926 to 5 February 1929 |
Alfred Frédéric Gérard Marzorati, Governor and Deputy Governor-General of the Belgian Congo |
|
| 5 February 1929 to 4 July 1930 |
Louis Joseph Postiaux, acting Governor and Deputy Governor-General of the Belgian Congo |
|
| 4 July 1930 to 18 August 1932 |
Charles Henri Joseph Voisin, Governor and Deputy Governor-General of the Belgian Congo |
|
| 18 August 1932 to 5 July 1946 |
Eugène Jacques Pierre Louis Jungers, Governor and Deputy Governor-General of the Belgian Congo |
|
| 5 July 1946 to 13 December 1946 |
Maurice Simon, Governor and Deputy Governor-General of the Belgian Congo |
|
| United Nations Trust Territory of Ruanda-Urundi |
| 13 December 1946 to 1947 |
Maurice Simon, Governor and Deputy Governor-General of the Belgian Congo |
|
| 1947 to August 1949 |
Maurice Simon, Governor and Deputy Governor-General of the Belgian Congo |
|
| August 1949 to 1 January 1952 |
Léon Antoine Marie Pétillon, Governor and Deputy Governor-General of the Belgian Congo |
|
| 1 January 1952 to 1 March 1955 |
Alfred Maria Josephus Ghislencus Claeys Boúúaert, Governor and Deputy Governor-General of the Belgian Congo |
|
| 1 March 1955 to 1960 |
Jean-Paul Harroy, Governor and Deputy Governor-General of the Belgian Congo |
|
| 1960 to 1 July 1962 |
Jean-Paul Harroy, Resident-General |
|
| 1 July 1962 |
Independence as Republic of Burundi and Republic of Rwanda |