Réveillon may refer to:
Réveillon, a long dinner, and possibly party, held on the evenings preceding Christmas Day and New Year's Day, in Brazil, in Portugal, in France and some other French-speaking countries
Réveillon is the name of two communes in France: Réveillon, Marne, in the Marne département Réveillon, Orne, in the Orne département
Réveillon is the name of two rivers in France: Réveillon (Yerres), tributary of the Yerres, crossing the Seine-et-Marne and the Val-de-Marne departments Réveillon (Epte), tributary of the Epte, crossing the Oise and the Eure departments
Réveillon is a surname: Jean-Baptiste Réveillon Réveillon riots
Réveillon is also: Le Réveillon, a play by Henri Meilhac and Ludovic Halévy which became the basis for Die Fledermaus