Jeanne Arnould-Plessy (born Jeanne-Sylvanie-Sophie Plessy; 4 September 1819 – 30 May 1897) was a French stage actress.

Plessy made her stage debut as Emma at the Comédie-Française in 1834 in Alexandre Duval's La Fille d'honneur.

[2] Until 1845, she had prominent parts in all the plays, new and old, at the Théâtre Français, when suddenly at the height of her success, she left Paris and went to London to marry the dramatic author Auguste Jean François Arnould (1803-1854), a man much older than herself.

The Comédie-Française, after having tried in vain to bring her back, brought a suit against her and obtained damages.

She revived some of her old roles, but her later triumphs were especially associated with new plays by Émile Augier, including Maître Guérin.