Dame de Gosnai (fl. 1200s CE) was a woman trouvère. She was a member of the Puy d'Arras, a society dedicated to competitions between courtly trouvères in 13th century Arras (in modern-day France).
Her most famous work is a jeu-parti (a composition, usually in the form of a debate, written by two trouvères as interlocutors, who compose alternating verses) known "Dame de Gosnai, gardez". Her interlocutor was the trouvère Gillebert de Berneville.