The 2023 FIBA U20 European Championship Division B was the 17th edition of the Division B of the European basketball championship for men's national under-20 teams.

It was played from 7 to 16 July 2023 in Skopje, North Macedonia.

[1] The draw of the first round was held on 14 February 2023 in Freising, Germany.

[2][3] In the first round, the teams were drawn into four groups.

The first two teams from each group advanced to the quarterfinals; the third and fourth teams advanced to the 9th–16th place playoffs; the other teams played in the 17th–20th place classification group.