商业名称（trade name, trading name, or business name），是企业基于商业目的所使用的贸易名称，不过可能与企业本身于签约及其他正式场合所使用之注册名称有所出入。可指企业名、商品名或商标名等依营业用途而定。

A trade name, trading name, or business name is a pseudonym used by companies to perform their business under a name that differs from the registered, legal name of the business. Trade names are typically used by companies to conduct their operations under a simpler brand as opposed to using their formal name within all public communications, or when a desired name was not able to be registered by the business operator, or if that business is owned by a separate company, franchisee, or a sole proprietorship. Trade names are also used in drug nomenclature with specific policies and guidelines for use in academic publications, (for example, atorvastatin (trade name Lipitor by Pfizer)).