The main aim of this study is to investigate the impact of women's activism on the gender equality agenda in Turkey, specifically in terms of legislative reforms. In this context, this study is devoted to a more elaborate assessment of the Campaign for the Turkish Penal Code in 2005. This work is that women's activism in Turkey, which made its way into public discourse in the 1980's, maturing and becoming institutionalized in the 1990's, transformed into an effective civil society agent in shaping social policy. In this process, women's organizations increasingly engaged with international women's rights mechanisms and used them in demanding the state to comply with its international obligations.