Most vendors don’t need an LLC to sell at farmers markets. You can operate as a sole proprietor, which means you’re selling under your own name with no formal business structure required.
That said, some markets do require proof of business registration, a seller’s permit, or a food handler’s license depending on what you’re selling. Check the specific requirements for each market before you apply. An LLC can offer personal liability protection if your business grows, but it’s not a starting requirement for most vendor markets. When in doubt, check with your state’s business filing office or a local small business resource.