The 2018–19 Basketball Championship of Bosnia and Herzegovina was the 18th season of this championship, with 11 teams from Bosnia and Herzegovina participating in it.
Široki won its tenth league title.
Eleven teams would join the regular season, played with as double round-robin tournament.
[1] Igokea, participant in the 2018–19 Adriatic League First Division, would not join the competition.
Source: Basketball Federation of BiH