The NRL added that no club would be relegated and that no team would be promoted to Pro D2, the country’s second division.
The decision has been widely awaited since the NRL and club presidents reached an agreement on April 30 to suspend the campaign.
The LNR said in a statement that the board of directors had passed a resolution calling for an end to the Top 14 and Pro D2 championships.
He added that the European qualifying places would be allocated “once the European Professional Club Rugby (ECPR) has confirmed the applicable competition format in 2020-21”.
The classifications which will be taken into account are those of the day of the 17th round of the matches, with the Union Bordeaux Begles in the lead with 61 points ahead of Lyon (53), Racing 92 (46) and RC Toulon (45).
French Prime Minister Edouard Philippe said in April that the 2019-2020 sports season could not resume, to contain the spread of the new coronavirus, although the government has left room for games without spectators.
Ending the season without spectators has never been an option for the LNR as most of its club revenue comes from the sale of tickets and stadium reception services.