The 1985/86 season was the 87th 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 top two in each group went straight to the knockout round, while the teams in positions 3 to 6 fought an additional barrage . This was followed by the eighth, quarter and semi-finals. In the final, which took place on May 24, 1986 in the Parc des Princes in Paris , the two semi-final winners met and played for the Bouclier de Brennus . Here sat Stade Toulousain against SU Agen through and won for the ninth time the championship.
