2018–19 Liga Națională (men's basketball)

The 2018–19 Liga Națională season will be the 69th season of the Liga Națională, the highest professional basketball league in Romania. This will be the first season under a new format, which increases the number of teams to 22. CSM U Oradea are the defending champions.

Competition format
The Romanian Basketball Federation agreed a change in the competition format for the 2018–19 season:


 * 22 teams (divided into 3 value groups: A, B and C) played the regular season, consisting in a double-legged round robin format.
 * Group A consist of the top 8 ranked teams from the 2017–18 Liga Națională.
 * Group B consist of top 4 ranked teams from the 2017–18 Liga I.
 * Group C consist of the other teams that played in the 2017–18 Liga Națională, 2017–18 Liga I or newly formed teams (which respect the financial and infrastructure criteria), but which not have the right to advance in this season to the final stages of the championship.
 * At the end of the regular season, teams are split into four groups (Red, Yellow, Blue and Green).
 * Red Group consist of the top 6 ranked teams from the Group A.
 * Yellow Group consist of the bottom 2 ranked teams from the Group A, top 3 teams from the Group B and the winner of the Group C.
 * Blue Group consist of the 4th place from the Group B and 2nd to 6th places from the Group C.
 * Green Group consist of the 7th to 10th places from the Group C.
 * All teams from the Red Group (from 1st to 6th place) and the top 2 ranked teams from the Yellow Group will join the play-offs. In this knockout stage, quarterfinals and semifinals will be played with a best-of-five-games format.
 * To decide the teams ranked between 5th and 8th place will be used the best-of-three-games format.
 * The rest of the teams from the Yellow, Blue and Green Groups (16 teams) will form 2 groups of 8 teams and will play to decide the final rankings.
 * Last six teams of play out phase (17th-22nd place) will be relegated to Liga I

Team changes
Promoted from Liga I


 * Cuza Sport Brăila
 * Aurel Vlaicu București
 * Athletic Constanța
 * CSO Voluntari
 * CSM BC Sighetu Marmației
 * CSM Mediaș
 * Rapid București
 * ACS Târgu Jiu
 * Agronomia București
 * Universitatea Cluj-Napoca

Excluded teams

 * BC Mureș was dissolved.

Other teams

 * Miercurea Ciuc, CSM Focșani and CSM Târgu Mureș were enrolled in the Liga Națională.

Play-offs
All series were played in a best-of-five games format, except the third place match which was played in best-of-three games format.

5th to 8th
All series were played in a best-of-three games format.

9th to 16th position
All series were played by two-legged series.

13th to 16th
All series were played in a best-of-three games format.