St. Louis Mardi Gras is an annual celebration held in St. Louis, Missouri, typically in February or early March. It features a vibrant parade, live music, and various festivities that attract thousands of visitors. The event is known for its colorful floats, elaborate costumes, and lively atmosphere, making it one of the largest Mardi Gras celebrations in the United States. The main festivities take place in the Soulard neighborhood, which is famous for its historic architecture and lively nightlife. In addition to the parade, attendees can enjoy food vendors, street performances, and family-friendly activities, creating a festive environment for all ages.