The 2017–18 National Basketball League (Bulgaria) season was the 77th season of the Bulgarian NBL.

The season started on October 7, 2017 and ended on May 29, 2018.

[3] In the regular season, teams play against each other three times home-and-away in a double round-robin format.

The eight first qualified teams advance to the playoffs.

Home and away games depend on table after the first stage.