Leave.EU is a campaign group that was established in the United Kingdom to advocate for the country's exit from the European Union. Founded in 2015, it aimed to raise awareness about the benefits of leaving the EU and to mobilize public support for the Brexit referendum held in June 2016. The organization utilized various methods, including social media campaigns and public events, to promote its message. Following the referendum, Leave.EU continued to engage in discussions about the implications of Brexit and the future relationship between the UK and the EU.