The 9th César Awards ceremony, presented by the Académie des Arts et Techniques du Cinéma, honoured the best French films of 1983 and took place on 3 March 1984 at the Théâtre de l'Empire in Paris. The ceremony was chaired by Gene Kelly and hosted by Léon Zitrone. Le Bal and À nos amours tied for the award for Best Film.

The winners are highlighted in bold:

• Best Film:
  Le Bal, directed by Ettore Scola
  À nos amours, directed by Maurice Pialat
  Coup de foudre, directed by Diane Kurys
  Tchao pantin, directed by Claude Berri
  L'Été meurtrier, directed by Jean Becker
• Best Foreign Film:
  Fanny and Alexander, directed by Ingmar Bergman
  Carmen, directed by Carlos Saura
  The Gods Must Be Crazy, directed by Jamie Uys
  Tootsie, directed by Sydney Pollack
• Best First Work:
  Rue cases nègres, directed by Euzhan Palcy
  Le Dernier Combat, directed by Luc Besson
  Le Destin de Juliette, directed by Aline Issermann
  La Trace, directed by Bernard Favre
• Best Actor:
  Coluche, for Tchao pantin
  Gérard Depardieu, for Les Compères
  Yves Montand, for Garçon!
  Michel Serrault, for Mortelle randonnée
  Alain Souchon, for L'Été meurtrier
• Best Actress:
  Isabelle Adjani, for L'Été meurtrier
  Miou-Miou, for Coup de foudre
  Nathalie Baye, for J'ai épousé une ombre
  Nicole Garcia, for Les Mots pour le dire
  Fanny Ardant, for Vivement dimanche!
• Best Supporting Actor:
  Richard Anconina, for Tchao pantin
  Guy Marchand, for Coup de foudre
  Bernard Fresson, for Garçon!
  Jacques Villeret, for Garçon!
  François Cluzet, for L'Été meurtrier
• Best Supporting Actress:
  Suzanne Flon, for L'Été meurtrier
  Victoria Abril, for La Lune dans le caniveau
  Stéphane Audran, for Mortelle randonnée
  Agnès Soral, for Tchao pantin
  Sabine Azéma, for La vie est un roman
• Most Promising Actor:
  Richard Anconina, for Tchao pantin
  Jacques Penot, for Au nom de tous les miens
  Jean-Hugues Anglade, for L'Homme blessé
  François Cluzet, for Vive la sociale!
• Most Promising Actress:
  Sandrine Bonnaire, for À nos amours
  Laure Duthilleul, for Le Destin de Juliette
  Agnès Soral, for Tchao pantin
  Élisabeth Bourgine, for Vive la sociale!
• Best Director:
  Ettore Scola, for La Bal
  Claude Berri, for Tchao pantin
  François Truffaut, for Vivement dimanche!
  Maurice Pialat, for À nos amours
  Jean Becker, for L'Été meurtrier
• Best Writing - Original:
  Hervé Guibert, Patrice Chéreau, for L'Homme blessé
  Francis Veber, for Les Compères
  Diane Kurys, Alain Le Henry, for Coup de foudre
• Best Writing - Adaptation:
  Sébastien Japrisot, for L'Été meurtrier
  Robert Enrico, for Au nom de tous les miens
  Claude Berri, for Tchao pantin
• Best Cinematography:
  Bruno Nuytten, for Tchao pantin
  Ricardo Aronovich, for Le Bal
  Philippe Rousselot, for La Lune dans le caniveau
  Pierre Lhomme, for Mortelle randonnée
• Best Sound:
  Jean Labussière, Gérard Lamps, for Tchao pantin
  Jean-Louis Ughetto, Luc Yersin, for L'Argent
  Jacques Maumont, Pierre Lenoir, for Garçon!
  Nadine Muse, Paul Lainé, Maurice Gilbert, for Mortelle randonnée
• Best Editing:
  Jacques Witta, for L'Été meurtrier
  Françoise Prenant, for Faits divers
  Françoise Bonnot, for Hanna K.
  Denise de Casabianca, for L'Homme blessé
  Claire Pinheiro, for Les Mots pour le dire
• Best Music:
  Vladimir Cosma, for Le Bal
  Charlélie Couture, for Tchao pantin
  Serge Gainsbourg, for Équateur
  Georges Delerue, for L'Été meurtrier
• Best Production Design:
  Hilton McConnico, for La Lune dans le caniveau
  Jean-Pierre Kohut-Svelko, for Mortelle randonnée
  Alexandre Trauner, for Tchao pantin
  Jacques Saulnier, for La vie est un roman
• Best Animated Short:
  Le Voyage d'Orphée, directed by Jean-Manuel Costa
  Au-delà de minuit, directed by Pierre Berletta
  Le Sang, directed by Jacques Rouxel
• Best Fiction Short Film:
  Star suburb: La banlieue des étoiles, directed by Stéphane Drouot
  Coup de feu, directed by Magali Clément
  Panique au montage, directed by Olivier Esmein
  Toro Moreno, directed by Gérard Krawczyk
• Best Documentary Short Film:
  Ulysse, directed by Agnès Varda
  Je sais que j'ai tort mais demandez à mes copains ils disent la même chose, directed by Pierre Levy
  La Vie au bout des doigts, directed by Jean-Paul Janssen
• Best French Language Film:
  Dans la ville blanche, directed by Alain Tanner
• Honorary César:
  René Clément
  Georges de Beauregard
  Edwige Feuillère

• 56th Academy Awards
• 37th British Academy Film Awards

• Official website
• 9th César Awards at IMDb
• 9th César Awards at AlloCiné