1977–78 French Rugby Union Championship
The 1977–78 French Rugby Union Championship was won by Béziers beating Montferrand in the final.
Formula
The "elite" were formed by five pools of eight clubs.Were 25 the teams of group A qualified for the knockout stages with seven team coming from group B, also formed by 40 teams.
Both group were arranged in 5 pools of 8 teams.
Qualification Round
Group A
In bold the clubs qualified for the next round. The teams are listed according to the final rankingGroup B
The teams qualified are here listed:Knockout stage
"Last 32"
In bold the clubs qualified for the next round| Team 1 | Team 2 | Results |
| Béziers | Thuir | 29-15 |
| Oloron | US Bressane | 19-10 |
| Perpignan | Auch | 26-7 |
| Biarritz | Aurillac | 23-9 |
| Romans | Boucau | 24-3 |
| Toulouse | Bègles | 27-10 |
| RRC Nice | Saint-Jean-de-Luz | 22-19 |
| Graulhet | Stade Bagnérais | 11-27 |
| Agen | Tulle | 16-10 |
| Lourdes | Pau | 39-10 |
| Valence | Dax | 12-9 |
| Touloun | Mont de Marsan | 22-7 |
| Montferrand | Montauban | 36-19 |
| Bayonne | Racing | 29-9 |
| Brive | Stadoceste | 6-0 |
| Narbonne | Avignon Saint-Saturnin | 6-0 |
"Last 16"
In bold the clubs qualified for the next round| Team 1 | Team 2 | Results |
| Béziers | Oloron | 33-11 |
| Perpignan | Biarritz | 4-3 |
| Romans | Toulouse | 6-18 |
| RRC Nice | Stade Bagnérais | 6-22 |
| Agen | Lourdes | 10-16 |
| Valence | Toulon | 22-9 |
| Montferrand | Bayonne | 7-0 |
| Brive | Narbonne | 16-28 |
Quarter of finals
In bold the clubs qualified for the next round| Team 1 | Team 2 | Results |
| Béziers | Perpignan | 26-3 |
| Toulouse | Stade Bagnérais | 18-14 |
| Lourdes | Valence | 9-15 |
| Montferrand | Narbonne | 22-18 |