倡议（英语：Initiative），又称人民提案权（Popular Initiative），或公民提案权（citizens' initiative），是一种公民请愿权力，在得到多数人的连署后，就可强迫政府进行公民投票进程。提案权是直接民主的形式之一，对象是某个法规、宪法修正案（Constitutional amendment）、宪章修正案（charter amendment）或地方规章（Local ordinance），或是直接针对政府或国会，要求他们考虑人民的意见。

In political science, an initiative (also known as a popular or citizens' initiative) is a means by which a petition signed by a certain minimum number of registered voters can force a public vote (plebiscite).

The initiative may take the form of a direct initiative or an indirect initiative. In a direct initiative, a measure is put directly to a vote after being submitted by a petition. In an indirect initiative, a measure is first referred to the legislature, and then put to a popular vote only if not enacted by the legislature.