Legislation is the process or result of enrolling, enacting, or promulgating laws by a legislature, parliament, or analogous governing body.

Before an item of legislation becomes law it may be known as a bill, and may be broadly referred to as "legislation" while it remains under consideration to distinguish it from other business.

Legislation can have many purposes: to regulate, to authorize, to outlaw, to provide (funds), to sanction, to grant, to declare, or to restrict. It may be contrasted with a non-legislative act by an executive or administrative body under the authority of a legislative act.