The French language is considered as one of the most romantic languages in the world. Speaking French in someone’s dream may signify that they are at the peak of their romance and they are not afraid to admit that they are in love with someone.
French is also associated with sophistication and romance for many people, so if you dream about speaking it then this may indicate that you have high romantic expectations for someone or something. It might represent your wish to experience life on a different level or your desire to be more worldly than most people are.