1977–78 Ligue Magnus season

The 1977–78 Nationle A season was the 57th season of the Nationale A, the top level of ice hockey in France. 10 teams participated in the league, and Gap Hockey Club won their second league title. Hockey Club de Caen was relegated to the Nationale B.

Relegation

 * Club des patineurs lyonnais - Sporting Hockey Club Saint Gervais 5:13/3:13