The 2005 FIBA Europe Under-20 Championship was the eighth edition of the FIBA Europe Under-20 Championship. The city of Chekhov, in Russia, hosted the tournament. Russia won their first title.
Ukraine and the Czech Republic were relegated to Division B.
For the first time, the format of the competition was changed. Four more teams entered the competition, and another round was played. The two last teams were relegated to Division B.
The sixteen teams were allocated in four groups of four teams each.
The eight teams were allocated in two groups of four teams each.
The eight teams were allocated in two groups of four teams each.
Ukraine and the Czech Republic were relegated to Division B.