Sharia (; Arabic: شريعة, romanized: sharīʿa [ʃaˈriːʕa]) is a body of religious law that forms a part of the Islamic tradition. It is derived from the religious precepts of Islam and is based on the sacred scriptures of Islam, particularly the Quran and the Hadith. In Arabic, the term sharīʿah refers to God's immutable divine law and is contrasted with fiqh, which refers to its human scholarly interpretations. The manner of its application in modern times has been a subject of dispute between Muslim fundamentalists and modernists.

Traditional theory of Islamic jurisprudence recognizes four sources of Sharia: the Quran, sunnah (authentic hadith), qiyas (analogical reasoning), and ijma (juridical consensus). Different legal schools—of which the most prominent are Hanafi, Maliki, Shafiʽi, Hanbali, and Jaʽfari—developed methodologies for deriving Sharia rulings from scriptural sources using a process known as ijtihad. Traditional jurisprudence (fiqh) distinguishes two principal branches of law, ʿibādāt (rituals) and muʿāmalāt (social relations), which together comprise a wide range of topics. Its rulings are concerned with ethical standards as much as with legal norms, assigning actions to one of five categories: mandatory, recommended, neutral, abhorred, and prohibited. Fiqh was elaborated over the centuries by legal opinions (fatwas) issued by qualified jurists (muftis) and historically applied in Sharia courts by ruler-appointed judges, complemented by various economic, criminal and administrative laws issued by Muslim rulers.

In the 21st century, the role of Sharia has become an increasingly contested topic around the world. There are progressives trying to argue that Sharia is compatible with democracy, human rights, freedom of thought, women's rights, LGBT rights, and banking. The European Court of Human Rights in Strasbourg (ECtHR) ruled in several cases that Sharia is "incompatible with the fundamental principles of democracy". In the modern era, traditional laws in the Muslim world have been widely replaced by statutes inspired by European models. Judicial procedures and legal education were likewise brought in line with European practice. While the constitutions of most Muslim-majority states contain references to Sharia, its rules are largely retained only in family law. The Islamic revival of the late 20th century brought along calls by Islamic movements for full implementation of Sharia, including hudud corporal punishments, such as stoning.