The 1979/80 season was the 81st edition of the French Rugby Union Championship. It comprised 40 teams in the top division (today's top 14 ).
The championship was divided into two phases. It began with the group stage, in which ten teams played against each other in four groups. The eight best placed in each group advanced to the knockout round. Sixteenth, eighth, quarter and semi-finals followed. In the final, which took place on May 25, 1980 in the Parc des Princes in Paris , the two semi-final winners met and played for the Bouclier de Brennus . Here, the set AS Béziers against Stade Toulousain through and won for the eighth time the championship.
