This article argues that the AKP has dismantled secularism in Turkey through stealth Islamization. Defined as incremental and top-down Islamization of social and political life, this process entails four processes: (1) institutionalization of Turkish Islamist political imaginary; (2) redesigning the Diyanet and public education system to spread Islamic beliefs and practices (da'wa); (3) the privileging of Muslim identity at the expense of secular choices, whose costs have increased substantially; and (4) return of Islam to the public space through changes in the built environment. This article unpacks these four processes, which entails AKP's colonization of the state to Islamize society.