In Turkey, it is generally accepted for unmarried couples to live together, although it is not explicitly legal to cohabitate. 

No laws expressly prohibit unmarried couples from living together, and it is not uncommon for people in Turkey to cohabitate before marriage. However, there may be a social stigma attached to cohabitation for unmarried couples in some parts of Turkey, and some may view it as against traditional values.

It is worth noting that cohabitation is not recognized as a legally recognized form of partnership in Turkey, and couples who cohabitate do not have the same legal rights as married couples. 

For example, unmarried couples do not have the right to inherit from each other or to make medical decisions for each other. Additionally, children born to unmarried couples do not have the same legal rights as children born to married couples and may not be eligible for certain benefits or protections.

Overall, it is essential for unmarried couples in Turkey to be aware of the legal limitations of cohabitation and to consider the social attitudes towards cohabitation in the specific parts of Turkey where they live.