Introduction: In late December 2013, a biologist alerted the Languedoc-Roussillon Regional Health Agency (ARS) to the diagnosis of four cases of hepatitis A within five days. After interviewing the cases, it emerged that two of them worked at the same bakery and pastry shop in the Hérault department. An epidemiological investigation was conducted to identify the cases, determine the source of infection, and implement appropriate control and prevention measures. Methods: An active case search was conducted among biologists in the department. Each case was interviewed using a standardized questionnaire. Virological analysis was performed by the National Reference Center for HAV-HEV to characterize and compare HAV strains. Results: A total of 27 cases of hepatitis A carrying the same previously unknown epidemic strain of type IA were identified. The index case was an employee of a bakery and pastry shop. Seventeen cases were epidemiologically linked to this bakery, including 2 cases working there; 10 were secondary cases or not directly linked to this establishment. Conclusion: This outbreak was linked to the contamination of food products at a commercial food establishment. Foodborne hepatitis A outbreaks are rare in France (nine episodes reported between 2005 and 2014) and are primarily linked to food contaminated by a food handler who is an excretor. Their prevention relies on training food handlers in food hygiene and the implementation of food safety and hygiene measures.