Thomas Rudolphe Kanza or Nsenga Kanza was a Congolese diplomat. He was one of the first Congolese nationals to graduate from a university. From 1960 to 1962, he served as the Democratic Republic of the Congo 's first ambassador to the United Nations and from 1962 to 1964, was a delegate to the United Kingdom. His opposition to the governments of Moïse Tshombe and Joseph-Désiré Mobutu led him to first rebel and ultimately flee the Congo. He returned in 1983, and resumed politics. From Mobutu's ousting in 1997 until his own death, Kanza served in diplomatic roles for the Congo.

The Republic of the Congo was a sovereign state in Central Africa, created with the independence of the Belgian Congo in 1960. From 1960 to 1966, the country was also known as Congo-Léopoldville to distinguish it from its northwestern neighbor, which is also called the Republic of the Congo, alternatively known as "Congo-Brazzaville". In 1964, the state's official name was changed to the Democratic Republic of the Congo, but the two countries continued to be distinguished by their capitals; with the renaming of Léopoldville as Kinshasa in 1966, it became also known as Congo-Kinshasa. After Joseph Désiré Mobutu, commander-in-chief of the national army, seized control of the government in 1965, the Democratic Republic of the Congo became the Republic of Zaire in 1971. It would again become the Democratic Republic of the Congo in 1997. The period between 1960 and 1964 is referred to as the First Congolese Republic.