有限公司，在美国企业型态为有限责任公司（Limited Liability Company，LLC），是一种公司的组织形态，有限公司对外所负的经济责任，以出资者所投入的资金为限。倘若有限公司被债权人清盘，债权人不可以从股东个人财产中索偿。在某些地方，有限公司与股份有限公司不同，有限公司相对适合中小型企业，股份有限公司相对适合大型企业。但是也有某些地方，不论公司大小，股份有限公司都是最常见的有限公司类型。有限公司的概念较晚出现，一些地方的法律没有关于有限公司的界定。

A limited liability company (LLC) is the United States-specific form of a private limited company. It is a business structure that combines the pass-through taxation of a partnership or sole proprietorship with the limited liability of a corporation. An LLC is not a corporation; it is a legal form of a company that provides limited liability to its owners in many jurisdictions. LLCs do not need to be organized for profit. In certain U.S. states (for example, Texas), businesses that provide professional services requiring a state professional license, such as legal or medical services, may not be allowed to form an LLC but may be required to form a very similar entity called a professional limited liability company (PLLC).