The Banque du Congo Belge (BCB, Dutch: Bank van Belgisch Congo; lit. 'Bank of the Belgian Congo') was a Belgian colonial bank that mainly operated in the Belgian Congo from 1909 to 1960. Following Congolese independence, it kept operating as the Banque du Congo from 1960 to 1971, the Banque Commerciale Zaïroise from 1971 to 1997, and the Banque Commerciale Du Congo (BCDC) from 1997 to 2020, when it was acquired by Kenya-based Equity Group Holdings and became part of Equity Banque Commerciale du Congo.
The BCB held a monopoly on currency issuance in the Belgian Congo from 1911 to 1952, and in Ruanda-Urundi from 1916 to 1952, effectively acting as the central bank in these territories. It was succeeded in that role in 1952 by the newly established Banque Centrale du Congo Belge et du Ruanda-Urundi.