The 2018 BBL-Pokal was the 51st season of the German Basketball Cup, the domestic cup competition of the Basketball Bundesliga (BBL). On 6 June 2017, it was announced that the Top Four would be held at the Arena Ulm/Neu-Ulm in Ulm, which gained ratiopharm Ulm automatic qualification. The other six participating teams were selected through the standings in the 2017–18 Basketball Bundesliga.

Basketball Bundesliga-Pokal, commonly known as the BBL-Pokal, is the annual national basketball cup competition in Germany. Since 2009, the title has been awarded to the winner of a tournament competition between top clubs of each Basketball Bundesliga (BBL) season.