Generation Yes was an campaign group in Ireland that was active in promoting the country's European Union (EU) membership and a 'Yes' vote in the campaign prior to the second referendum on the country's ratification of the Treaty of Lisbon, which was held on 2 October 2009.

[1] The group was launched 24 April 2009 and was primarily made up of college students and graduates.

[2] Generation Yes had a stated aim to use social networking websites (such as Facebook and Twitter) to organise a "grassroots movement".

[3] The organisation became inactive after the second lisbon treaty referendum.

[4] This article about an organisation in Ireland is a stub.