Cosse

Cosse or Cossé may refer to:
 * Cossé-d'Anjou, France
 * Cossé-le-Vivien, France

People named Cosse or Cossé include:
 * Airbertach mac Cosse, Irish poet
 * Carolina Cosse, Uruguayan engineer
 * Emmanuelle Cosse, French politician
 * Laurence Cossé, French writer
 * Villanueva Cosse (born 1933), Uruguayan actor, theater director, and writer
 * Duke of Brissac

Cosse may also refer to:
 * Kosse (Königsberg), Prussia