Réveillon is Brazil's traditional name for its New Year's Eve celebration.
In Brazil, Réveillon generally refers to the evening and festivities surrounding the change from 31 December to 1 January. The word comes from French réveillon, a name for a late celebratory meal or gathering, and it is used in Portuguese-speaking contexts as well as in France.
Brazilian Réveillon celebrations commonly include outdoor parties, music, fireworks and gatherings with family or friends. Rio de Janeiro's event on Copacabana Beach is among the world's most famous examples, drawing enormous crowds and featuring fireworks over the Atlantic Ocean.
The term should not be confused with Carnaval, Brazil's pre-Lenten festival, which is a separate celebration usually held weeks later. Réveillon is specifically associated with New Year's Eve, even though local customs and religious practices differ across Brazil.