1. a placename

a. the commune of Brienne in Saône-et-Loire, France.

b. the commune of Brienne-le-Château, in l'Aube, France; which includes the Brienne Military Academy

c. the commune of Brienne-sur-Aisne, in Ardennes, France

d. the commune of Brienne-la-Vieille, in l'Aube, France

2. a surname, an elliptical variant of de Brienne