Vianne Rocher is a fictional character from the novel "Chocolat," written by Joanne Harris. She is a free-spirited chocolatier who opens a chocolate shop in a small French village during Lent, challenging the town's traditional values and beliefs. Vianne is known for her ability to create magical chocolates that evoke strong emotions and memories in those who consume them. Throughout the story, Vianne faces opposition from the village's conservative mayor, Comte de Reynaud, who disapproves of her unconventional ways. Despite the challenges, Vianne's warmth and kindness gradually win over the villagers, leading to personal transformations and a deeper understanding of community and acceptance.