Islamism is a religio-political ideology. The advocates of Islamism, also known as "al-Islamiyyun", are dedicated to realizing their ideological interpretation of Islam within the context of the state or society. The majority of them are affiliated with Islamic institutions or social mobilization movements, often designated as "al-harakat al-Islamiyyah." Islamists emphasize the implementation of sharia, pan-Islamic political unity, the creation of Islamic states,, and rejection of non-Muslim influences—particularly Western or universal economic, military, political, social, or cultural.

Sharia is a body of religious law that forms a part of the Islamic tradition based on scriptures of Islam, particularly the Quran and hadith. In Arabic, the term sharīʿah refers to God's immutable divine law and this referencing is contrasted with fiqh, which refers to its interpretations by Islamic scholars. Fiqh, practical application side of sharia in a sense, was elaborated over the centuries by legal opinions issued by qualified jurists and sharia has never been the sole valid legal system in Islam historically; it has always been used alongside customary law from the beginning, and applied in courts by ruler-appointed judges, integrated with various economic, criminal and administrative laws issued by Muslim rulers.