June 2015 Republican People's Party election campaign

The Republican People's Party election campaign of June 2015 was the election campaign of the Republican People's Party (CHP), the main opposition political party in Turkey. The campaign, which was mainly centred on the slogan Yaşanacak Bir Türkiye (A Liveable Turkey), was for the June 2015 general election. Before the election, the CHP had signed a deal with the American election strategy firm Beneson Strategy Group to assist with the campaign.

This was the second general election contested by the party's leader Kemal Kılıçdaroğlu, who was first elected leader in 2010. The CHP's performance in elections since then have been subject to criticism by some party members, especially following the 2014 local elections and the 2014 presidential election. However, Kılıçdaroğlu survived a leadership challenge in September 2014 and led the party into the election amid a party split with the newly formed Anatolia Party (ANAPAR).

The campaign, similar to most Turkish political campaigns, centred on mass electoral rallies throughout different Provinces of Turkey, with key manifesto pledges being to raise the minimum wage and to re-open the suppressed investigations into government corruption that began in December 2013. In late May, the party announced a project to build a megacity in the centre of Turkey to act as a centre for international trade and commerce named Merkez Türkiye, seen to be a rival 'crazy project' to the governing Justice and Development Party's Kanal Istanbul project. For the first time in the party's history, the campaign also had an overseas component, since this was the first general election in which Turkish expats could vote from consulates in their respective countries of residence.

On 7 June 2015, the CHP maintained their position as the second largest party, losing to the AKP by almost 16 percentage points. The party won 11.5 million votes (24.95%) and finished with 132 elected Members of Parliament, a decrease of 3 since the 2011 general election. The party also suffered a decrease of 1.03% compared to their 2011 result, which was attributed to CHP voters voting tactically for the Peoples' Democratic Party (HDP) to ensure that they surpassed the 10% election threshold. No opinion poll (apart from one dubious poll released in March 2014) showed the CHP ahead of the AKP between 2011 and 2015.