2017–18 Cyprus Basketball Division B

The 2017–18 Cyprus Basketball Division B is the 30th season of the Cyprus Basketball Division B, the second-tier level men's professional basketball league on Cyprus.

Competition format
Eight teams joined the regular season, where the four first qualified would join the playoffs for the promotion.

Quarterfinals
In the quarterfinals, teams playing against each other have to win two games to win the series. Thus, if one team wins two games before all three games have been played, the remaining game is omitted. The team that finished in the higher regular season place, is going to play the first and the third (if necessary) game of the series at home.

Semifinals
In the semifinals, teams playing against each other have to win three games to win the series. Thus, if one team wins three games before all five games have been played, the remaining games are omitted. The team that finished in the higher regular season place, is going to play the first and the third (if necessary) game of the series at home.

Final
In the finals, teams playing against each other have to win three games to win the series. Thus, if one team wins three games before all five games have been played, the remaining games are omitted. The team that finished in the higher regular season place, is going to play the first, the third and the fifth (if necessary) game of the series at home.