The 1965–66 French Rugby Union Championship was contested by 56 teams divided in 7 pools, The four first teams of each pool and the better for classified fifth were qualified for the "last 32".
The Agen won the Championship 1965–66 after beating Dax in the final and hold the title.
The 1966 Five Nations Championship was won by Wales thanks to his victory (9-8) against France in the last day.
The Challenge Yves du Manoir was won en 1966 by the Lourdes that beat Mont-de-Marsan 16 - 6.
In bold the qualified to next round
In bold the clubs qualified for the next round
Remplaçants : Georges Cavailles, Pierre Biémouret, Claude Salesse, Jean-Claude Soula, Serge Méricq
Dax line-up a very young team, with a lot of young people. Dourthe (17 years ols), Arrieumerlou (18 and half), Capdepuy (20) and Benali (18).
The final was signed by a lot of brutalities and violence.[1]