what is amazon third party sellers refers to independent vendors who list products on Amazon’s marketplace. These sellers are not Amazon employees and can be small businesses, manufacturers, or entrepreneurs. They use Amazon’s platform to reach customers and may fulfill orders through FBA or independently. Third-party sellers contribute to product variety and competitive pricing on Amazon. They must follow Amazon’s policies on quality, shipping, and customer service to maintain account health and listing visibility. This selling model democratizes e-commerce access for global entrepreneurs.