To hopefully increase the number of users (to more than 3), I have translated Marinette1429's list (available at the link). The list, derived from two magazine publishers, including Le Monde, shows only a slight bias toward French works.
For some EXTRA fun, see if you can translate the following works into their English equivalents before referring back to my list (they vary widely in difficulty):
L'Étranger (1)
À la recherche du temps perdu (2)
Les Raisins de la colère (7)
Le Nom de la rose (14)
Le Meilleur des mondes (21)
Les Faux-monnayeurs (30)
Cent ans de solitude (33)
Le Bruit et la Fureur (34)
La Vie mode d'emploi (43)
Gatsby le Magnifique (46)
Six personnages en quête d'auteur (53)
La Guerre des mondes (56)
Sur la route (67)
Le Choix de Sophie (82)
Le Grand Sommeil (96)
Au-dessous du volcan (99)
Les Enfants de minuit (100)
IMHO, the titles sound better in French, even if not originally written in that language.
Update : Yay! Already more than 3 users of this challenge.