The 1997–98 French Rugby Union Championship was played by 20 teams divided in the preliminary phase in two pools of 10.

The first four teams of each pool advanced to the quarter-finals.

Stade Français won the title beating in the final the Montferrand (that lose for 5th time the final).

It was the first victory for Stade Français after 90 years, the last was in 1908.

For the first time, the final was played in the new Stade de France.