Françoise 'Fanchon' Moreau (1668 – after 1743) was a French operatic soprano who belonged to the Académie Royale de Musique, also a celebrated beauty who was a favourite of the Great Dauphin.
Following her older sister Louison Moreau, Fanchon made her debut at the Paris Opéra in 1683 in the prologue of Phaëton by Lully, probably playing the role of Astrée.
She sang in operas by Lully, Campra, Charpentier, Destouches, Collasse, Desmarets, and Theobaldo Gatti including many premieres.
Julie d'Aubigny, the swordswoman and opera singer known as La Maupin, also fell in love with her and tried to commit suicide when she was rejected.
[citation needed] Fanchon's colourful love life was referred to in François Couperin's La femme entre deux draps and was also the subject of his harpsichord composition La tendre Fanchon.