A constitutional referendum was held in Turkey on 6 September 1987 to amend the "temporary article" 4 of the constitution, which had forbidden the leaders of banned parties (a total of 242 people) from taking part in politics for ten years.

[1] The changes were narrowly approved by 50.2% of voters, with a 93% turnout.

Political parties close to banned leaders participated in the 'Blue Color Yes' (Turkish: Mavi Renkli Evet) campaign carried out by four banned leaders to lift the bans in the said referendum.

In addition, Social Democratic Populist Party, although not under the control of any banned leader, called for a 'Yes' vote for September 6, especially their leader Erdal İnönü organized country-wide rallies for this purpose.

This Turkish elections-related article is a stub.