The 2007 FIBA Europe Under-20 Championship Division B was the third edition of the Division B of the FIBA Europe Under-20 Championship, the second-tier level of European Under-20 basketball. The city of Warsaw, in Poland, hosted the tournament. Montenegro won their first title.
Montenegro and Ukraine were promoted to Division A.
The eighteen teams were allocated in four groups (two groups of five teams and two groups of four). The two top teams of each group advanced to the qualifying round. The last three teams of each group advanced to the classification round.
The eight top teams were allocated in two groups of four teams each. Teams coming from the same initial group didn't play again vs. each other, but "carried" the results of the matches played between them for the first round.
The ten bottom teams were allocated in two groups of four teams each. Teams coming from the same initial group didn't play again vs. each other, but "carried" the results of the matches played between them for the first round.