La Nuit sur l'étang is a Canadian music festival, held annually in Sudbury, Ontario.
Established in 1973 by Fernand Dorais and a group of students (namely André Paiement) from Laurentian University, the festival presents a concert program of francophone musical artists over a night. It is one of the major annual events in franco-ontarian culture.
The festival also stages an annual competition for new and emerging franco-Ontarian bands, La Brunante. The winner of each year's La Brunante is given a slot on the Nuit sur l'étang bill.