Political advertising refers to communication carried out by a political actor or an actor acting on their behalf. Political advertising is also considered to include communication intended to influence the outcome of an election or referendum, voting behaviour or a legislative or regulatory process.

Political advertising means political communication in any media. Political advertising can appear online, on social media, on television, on the radio, as outdoor advertising or in printed newspapers. Political advertising is normally provided for remuneration.

Purely private or commercial messages are not political advertising. Journalistic content or political opinions expressed by individuals are also not considered political advertising. However, if a third party pays for the content displayed in the above situations, it may be considered political advertising.